CDE Detailed Report | NINDS Common Data Elements

Disease: content
Subdomain Name: Epidemiology/Environmental History
CRF: welcome

Displaying 1 - 50 of 239

CDE ID	CDE Name	Variable Name	Definition	Short Description	Question Text	Permissible Values	Description	Data Type	Disease Specific Instructions	Disease Specific Reference	Population	Classification (e.g., Core)	Version Number	Version Date	CRF Name (CRF Module / Guidance)	Subdomain Name	Domain Name	Size	Input Restrictions
C09867	Food Frequency Questionnaire - (FFQ)-foods eaten once week indicator	FFQFdsEatnOncWkInd	Other foods not previously mentioned the subject eats at least once per week, as part of Food Frequency Questionnaire -(FFQ)	Other foods not previously mentioned the subject eats at least once per week, as part of Food Frequency Questionnaire -(FFQ)	Are there other foods not mentioned above that you usually eat at least once per week?			Alphanumeric	Include for example: mushrooms, radish, horseradish, dates, figs, rhubarb, mango, mixed dried fruit, papaya, custard, venison, hot peppers, pickles, olives, Slim Fast, Ensure (regular or plus), Glucerna shake 'Do not include dry spices and do not list something that has been listed in the previous sections If None, skip to FFQ Q17	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History	255	Free-Form Entry
C09740	Food Frequency Questionnaire - (FFQ)-cauliflower indicator	FFQCalfInf	Average total amount of cauliflower the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of cauliflower the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Cauliflower (1/2 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;1 or more servings per week	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;1 or more servings per week	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09676	Food Frequency Questionnaire - (FFQ)-iron daily dose	FFQIrnDlyDose	Dose per day of Iron, as part of Food Frequency Questionnaire -(FFQ)	Dose per day of Iron, as part of Food Frequency Questionnaire -(FFQ)	Dose per day?	Less than 20 mg;20 to 30 mg;40 to 49 mg;50 mg or more;Don't know	Less than 20 mg;20 to 30 mg;40 to 49 mg;50 mg or more;Don't know	Alphanumeric	Only answered if "Yes, currently take it" is answered for "Iron". Convert Ferrous Sulfate to mg of elemental iron: 325mg Ferrous Sulfate = 65mg elemental iron.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09772	Food Frequency Questionnaire - (FFQ)-regular hamburger indicator	FFQRegHmbrgInd	Average total amount of regular hamburger the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of regular hamburger the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Hamburger, regular (1 patty)	Never;Less than once per month;Once per week;2-4 times per week;5-6 times per week;1 or more servings per day;1-3x/mo	Never;Less than once per month;Once per week;2-4 times per week;5-6 times per week;1 or more servings per day;1-3x/mo (1-3 times per month)	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09835	Food Frequency Questionnaire - (FFQ)-homemade pie indicator	FFQHmemdPieInd	Average total amount of homemade pie the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of homemade pie the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Pie, homemade (slice)	Never;Less than once per month;1-3 slices per month;1 slice per week;2-4 slices per week;5-6 slices per week;1 or more slices per day	Never;Less than once per month;1-3 slices per month;1 slice per week;2-4 slices per week;5-6 slices per week;1 or more slices per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09708	Food Frequency Questionnaire - (FFQ)-spreadable butter indicator	FFQSprButInd	Average amount of spreadable butter the subject has had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average amount of spreadable butter the subject has had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Spreadable butter - butter/oil blend (small pat or tsp.), added to food or bread - exclude use in cooking	Never;Less than once per month;1-3 pats per month;1 pat per week;2-4 pats per week;5-6 pats per week;1 pat per day;2-3 pats per day;4 pats per day	Never;Less than once per month;1-3 pats per month;1 pat per week;2-4 pats per week;5-6 pats per week;1 pat per day;2-3 pats per day;4 pats per day	Alphanumeric	For each food listed, indicate your average total use of the amount specified during the past year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09804	Food Frequency Questionnaire - (FFQ)-other low calorie beverage without caffeine indicator	FFQOthLowCalBevWthoutCaffInd	Average total amount of other low-calorie beverage without caffeine the subject drank this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of other low-calorie beverage without caffeine the subject drank this past year, as part of Food Frequency Questionnaire -(FFQ)	Other low-calorie beverage without caffeine, e.g., Diet 7-up (1 glass, bottle or can)	Never;Less than once per month;1-3 cans per month;1 can per week;2-4 cans per week;5-6 cans per week;1 can per day;2-3 cans per day;4 or more cans per day	Never;Less than once per month;1-3 cans per month;1 can per week;2-4 cans per week;5-6 cans per week;1 can per day;2-3 cans per day;4 or more cans per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food. 'Consider the serving size as one 12 oz. glass, bottle or can for these carbonated beverages.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09655	Food Frequency Questionnaire - (FFQ)-vitamin A duration	FFQVitADur	Duration of vitamin A intake, as part of Food Frequency Questionnaire -(FFQ)	Duration of vitamin A intake, as part of Food Frequency Questionnaire -(FFQ)	How long?	0-1 year;2-4 years;5-9 years;10 years or more	0-1 year;2-4 years;5-9 years;10 years or more	Alphanumeric	No instructions available	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09878	Food Frequency Questionnaire - (FFQ)-fish use ten years indicator	FFQFshUseTenYrInd	Indicator of how the subject's use of fish changed over the past ten years, as part of Food Frequency Questionnaire -(FFQ)	Indicator of how the subject's use of fish changed over the past ten years, as part of Food Frequency Questionnaire -(FFQ)	How has your use of fish changed over the past ten years?	Use has decreased;Use about the same;Use has increased	Use has decreased;Use about the same;Use has increased	Alphanumeric	No instructions available	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09751	Food Frequency Questionnaire - (FFQ)-cooked spinach indicator	FFQCooSpinInd	Average total amount of cooked spinach the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of cooked spinach the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Spinach, cooked (1/2 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;1 or more servings per week	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;1 or more servings per week	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09814	Food Frequency Questionnaire - (FFQ)-herbal tea decaffeinated tea indicator	FFQHerblTeaDecaffTeaInd	Average total amount of herbal tea or decaffeinated tea the subject drank this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of herbal tea or decaffeinated tea the subject drank this past year, as part of Food Frequency Questionnaire -(FFQ)	Herbal tea or decaffeinated tea (8 oz. cup)	Never;Less than once per month;1-3 cups per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;2-3 cups per day;4-5 cups per day;6+ cups per day	Never;Less than once per month;1-3 cups per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;2-3 cups per day;4-5 cups per day;6+ cups per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09687	Food Frequency Questionnaire - (FFQ)-potassium indicator	FFQPotInd	Potassium indicator, as part of Food Frequency Questionnaire -(FFQ)	Potassium indicator, as part of Food Frequency Questionnaire -(FFQ)	Not counting multi-vitamins, do you currently take Potassium?	No;Yes, currently take it	No;Yes, currently take it	Alphanumeric	Do not report content of multi-vitamins mentioned in Q1. If no, skip to FFQ Q2-13	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09783	Food Frequency Questionnaire - (FFQ)-cold breakfast cereal indicator	FFQCldBrkfstCerInd	Average total amount of cold breakfast cereal the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of cold breakfast cereal the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Cold breakfast cereal (1 serving)	Never;Less than once per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;4 or more cups per day;1-3 cups per month;2-3 cups per day	Never;Less than once per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;4 or more cups per day;1-3 cups per month;2-3 cups per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09846	Food Frequency Questionnaire - (FFQ)-oat bran added food indicator	FFQOatBranAddFdInd	Average total amount of oat bran, added to food the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of oat bran, added to food the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Oat bran, added to food (1 tbs.)	Never;Less than once per month;1-3 tbs per month;1 tbs per week;2-4 tbs per week;5-6 tbs per week;1 tbs per day;2 or more servings per day	Never;Less than once per month;1-3 tbs per month;1 tbs per week;2-4 tbs per week;5-6 tbs per week;1 tbs per day;2 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09719	Food Frequency Questionnaire - (FFQ)-applesauce indicator	FFQApplsInd	Average total amount of applesauce the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of applesauce the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Applesauce (1/2 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;One or more per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;One or more per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food. 'Please try to average your seasonal use of foods over the entire year. For example, if a food such as cantaloupe is eaten 4 times a week during the 3 months that it is in season, then average total use would be once per week over the year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09730	Food Frequency Questionnaire - (FFQ)-peaches plums indicator	FFQPechPlmInd	Average total amount of peaches or plums the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of peaches or plums the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Peaches or plums (1 fresh or 1/2 cup canned)	Never;Less than once per month;1-3 per month;Once per week;2-4 per week;5-6 per week;1 or more per day	Never;Less than once per month;1-3 per month;Once per week;2-4 per week;5-6 per week;1 or more per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food. Please try to average your seasonal use of foods over the entire year. For example, if a food such as cantaloupe is eaten 4 times a week during the 3 months that it is in season, then average total use would be once per week over the year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09666	Food Frequency Questionnaire - (FFQ)-vitamin D daily dose	FFQVitDDlyDose	Dose per day of Vitamin D, as part of Food Frequency Questionnaire -(FFQ)	Dose per day of Vitamin D, as part of Food Frequency Questionnaire -(FFQ)	Dose per day?	Less than 300 IU;300 to 500 IU;600 to 900 IU;1,000 IU or more;Don't know	Less than 300 IU;300 to 500 IU;600 to 900 IU;1,000 IU or more;Don't know	Alphanumeric	Only answered if "Yes, seasonal" and "Yes, currently take it most months" is answered for "Vitamin D"	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09762	Food Frequency Questionnaire - (FFQ)-regular eggs yolk indicator	FFQRegEggYolkInd	Average amount of regular eggs with yolk the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average amount of regular eggs with yolk the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Regular eggs with yolk (1)	Never;Less than once per month;1 egg per week;2-4 eggs per week;5-6 eggs per week;1 egg per day;2 or more eggs per day;1-3 eggs per month	Never;Less than once per month;1 egg per week;2-4 eggs per week;5-6 eggs per week;1 egg per day;2 or more eggs per day;1-3 eggs per month	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09825	Food Frequency Questionnaire - (FFQ)-fat free light popcorn indicator	FFQFatFreLghtPopcrnInd	Average total amount of fat free or light popcorn the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of fat free or light popcorn the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Fat free or light popcorn (3 cups)	Never;Less than once per month;1-3 servings per month;1 serving per week;2-4 servings per week;5-6 servings per week;1 serving per day;2 or more servings per day	Never;Less than once per month;1-3 servings per month;1 serving per week;2-4 servings per week;5-6 servings per week;1 serving per day;2 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09698	Food Frequency Questionnaire - (FFQ)-frozen yogurt sherbet low fat ice cream freq indicator	FFQFroYoSherLoFatIceCrmFreqInd	Average total amount of frozen yogurt, sherbet or low-fat ice cream the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of frozen yogurt, sherbet or low-fat ice cream the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Frozen yogurt, sherbet or low-fat ice cream (1 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Alphanumeric	For each food listed, indicate your average total use of the amount specified during the past year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09794	Food Frequency Questionnaire - (FFQ)-pasta indicator	FFQPastInd	Average total amount of pasta the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of pasta the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Pasta, e.g., spaghetti, noodles, couscous, etc. (1 cup)	Never;Less than once per month;1-3 cups per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;2 or more cups per day	Never;Less than once per month;1-3 cups per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;2 or more cups per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09857	Food Frequency Questionnaire - (FFQ)-regular mayonnaise indicator	FFQRegMaynInd	Average total amount of regular mayonnaise the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of regular mayonnaise the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Regular mayonnaise (1 tbs.)	Never;Less than once per month;1-3 tbs. per month;1 tbs. per week;2-4 tbs. per week;5-6 tbs. per week;1 tbs. per day;2 or more tbs. per day	Never;Less than once per month;1-3 tbs. per month;1 tbs. per week;2-4 tbs. per week;5-6 tbs. per week;1 tbs. per day;2 or more tbs. per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09868	Food Frequency Questionnaire - (FFQ)-other foods not previously eaten indicator	FFQOthFdsNotPrevslyEatnInd	The servings per week of each of the other foods not mentioned above the subject usually eats at least once per week, as part of Food Frequency Questionnaire -(FFQ)	The servings per week of each of the other foods not mentioned above the subject usually eats at least once per week, as part of Food Frequency Questionnaire -(FFQ)	The servings per week of each of the other foods not mentioned above that you usually eat at least once per week			Numeric Values	Answer for each food in FFQ Q16	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Free-Form Entry
C09741	Food Frequency Questionnaire - (FFQ)-Brussels sprouts indicator	FFQBrusSprtInd	Average total amount of brusselsprouts the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of brussel sprouts the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Brussels sprouts (1/2 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;1 or more servings per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;1 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09677	Food Frequency Questionnaire - (FFQ)-iron duration	FFQIrnDur	Duration of iron intake, as part of Food Frequency Questionnaire -(FFQ)	Duration of iron intake, as part of Food Frequency Questionnaire -(FFQ)	How long?	0-1 year;2-4 years;5-9 years;10 years or more	0-1 year;2-4 years;5-9 years;10 years or more	Alphanumeric	No instructions available	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09773	Food Frequency Questionnaire - (FFQ)-beef pork lamb sandwich mixed dish indicator	FFQBefLmbSndwchMixDisInd	Average total amount of beef, pork, or lamb as a sandwich or mixed dish the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of beef, pork, or lamb as a sandwich or mixed dish the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Beef, pork, or lamb as a sandwich or mixed dish, e.g., stew, casserole, lasagna, frozen dinner, etc.	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;1 or more times per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;1 or more times per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09836	Food Frequency Questionnaire - (FFQ)-ready made pie indicator	FFQRdyMdPieInd	Average total amount of ready-made pie the subject ate this past year , as part of Food Frequency Questionnaire -(FFQ)	Average total amount of ready-made pie the subject ate this past year , as part of Food Frequency Questionnaire -(FFQ)	Pie, ready-made (slice)	Never;Less than once per month;1-3 slices per month;1 slice per week;2-4 slices per week;5-6 slices per week;1 or more slices per day	Never;Less than once per month;1-3 slices per month;1 slice per week;2-4 slices per week;5-6 slices per week;1 or more slices per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09709	Food Frequency Questionnaire - (FFQ)-margarine spread indicator	FFQMarSprInd	Average total amount of margarine or spread the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of margarine or spread the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Margarine or spread (small pat or tsp.), added to food or bread; exclude use in cooking	Never;Less than once per month;1-3 pats per month;1 pat per week;2-4 pats per week;5-6 pats per week;1 pat per day;2-3 pats per day;4 pats per day	Never;Less than once per month;1-3 pats per month;1 pat per week;2-4 pats per week;5-6 pats per week;1 pat per day;2-3 pats per day;4 pats per day	Alphanumeric	For each food listed, indicate your average total use of the amount specified during the past year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09805	Food Frequency Questionnaire - (FFQ)-carbonated beverage caffeine sugar indicator	FFQCarbntdBevCaffSugInd	Average total amount of carbonated beverage with caffeine and sugar the subject drank this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of carbonated beverage with caffeine and sugar the subject drank this past year, as part of Food Frequency Questionnaire -(FFQ)	Carbonated beverage with caffeine and sugar, e.g., Coke, Pepsi, Mt. Dew, Dr. Pepper (1 glass, bottle or can)	Never;Less than once per month;1-3 cans per month;1 can per week;2-4 cans per week;5-6 cans per week;1 can per day;2-3 cans per day;4 or more cans per day	Never;Less than once per month;1-3 cans per month;1 can per week;2-4 cans per week;5-6 cans per week;1 can per day;2-3 cans per day;4 or more cans per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food. 'Consider the serving size as one 12 oz. glass, bottle or can for these carbonated beverages.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09656	Food Frequency Questionnaire - (FFQ)-beta carotene indicator	FFQBetCarInd	Indicator of whether or not the subject takes beta carotene, as part of Food Frequency Questionnaire -(FFQ)	Indicator of whether or not the subject takes beta carotene, as part of Food Frequency Questionnaire -(FFQ)	Not counting multi-vitamins, do you currently take beta carotene?	No;Yes, seasonal only;Yes, currently take it most months	No;Yes, seasonal only;Yes, currently take it most months	Alphanumeric	Do not report content of multi-vitamins mentioned in Q1. If no, skip to FFQ Q2-3	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09879	Food Frequency Questionnaire - (FFQ)-red meat use ten years indicator	FFQRedMetUseTenYrInd	Indicator of how the subjects use of red meat changed over the past ten years, as part of Food Frequency Questionnaire -(FFQ)	Indicator of how the subjects use of red meat changed over the past ten years, as part of Food Frequency Questionnaire -(FFQ)	How has your use of red meat changed over the past ten years?	Use has decreased;Use about the same;Use has increased	Use has decreased;Use about the same;Use has increased	Alphanumeric	No instructions available	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09752	Food Frequency Questionnaire - (FFQ)-raw spinach indicator	FFQRawSpinInd	Average total amount of raw spinach the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of raw spinach the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Spinach, raw as in salad (1 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;1 or more servings per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;1 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09815	Food Frequency Questionnaire - (FFQ)-tea caffeine green tea indicator	FFQTeaCaffGrnTeaInd	Average total amount of tea with caffeine, including green tea the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of tea with caffeine, including green tea the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Tea with caffeine, including green tea (8 oz. cup)	Never;Less than once per month;1-3 cups per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;2-3 cups per day;4-5 cups per day;6+ cups per day	Never;Less than once per month;1-3 cups per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;2-3 cups per day;4-5 cups per day;6+ cups per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09688	Food Frequency Questionnaire - (FFQ)-potassium daily amount dose	FFQPotDlyAmntDose	Dose per day of potassium, as part of Food Frequency Questionnaire -(FFQ)	Dose per day of potassium, as part of Food Frequency Questionnaire -(FFQ)	Dose per day?	Less than 2.5 mEq (100 mg);3 to 10 mEq;11 to 20 mEq;21 mEq or more;Don't know	Less than 2.5 mEq (100 mg);3 to 10 mEq;11 to 20 mEq;21 mEq or more;Don't know	Alphanumeric	Only answered if "Yes, currently take it" is answered for "potassium".	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09784	Food Frequency Questionnaire - (FFQ)-cooked oatmeal oat bran indicator	FFQCookdOatmelOatBranInd	Average total amount of cooked oatmeal/cooked oat bran the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of cooked oatmeal/cooked oat bran the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Cooked oatmeal/cooked oat bran (1 cup)	Never;Less than once per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;4 or more cups per day;1-3 cups per month;2-3 cups per day	Never;Less than once per month;1 cup per week;2-4 cups per week;5-6 cups per week;1 cup per day;4 or more cups per day;1-3 cups per month;2-3 cups per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09847	Food Frequency Questionnaire - (FFQ)-other bran added food indicator	FFQOthBranAddFdInd	Average total amount of other bran (wheat, etc.) the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of other bran (wheat, etc.) the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Other bran (wheat, etc), added to food (1 tbs)	Never;Less than once per month;1-3 tbs per month;1 tbs per week;2-4 tbs per week;5-6 tbs per week;1 tbs per day;2 or more servings per day	Never;Less than once per month;1-3 tbs per month;1 tbs per week;2-4 tbs per week;5-6 tbs per week;1 tbs per day;2 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09720	Food Frequency Questionnaire - (FFQ)-fresh apples pears indicator	FFQFrshApplPersInd	Average total amount of fresh apples or pears the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of fresh apples or pears the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Fresh apples or pears (1)	Never;Less than once per month;1-3x/mo;1 per week;2-4 times per week;5-6 times per week;One per day;2-3 per day;4 or more per day	Never;Less than once per month;1-3x/mo (1-3 times per month);1 per week;2-4 times per week;5-6 times per week;One per day;2-3 per day;4 or more per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food. 'Please try to average your seasonal use of foods over the entire year. For example, if a food such as cantaloupe is eaten 4 times a week during the 3 months that it is in season, then average total use would be once per week over the year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09858	Food Frequency Questionnaire - (FFQ)-salad dressing indicator	FFQSaldDrssInd	Average total amount of salad dressing the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of salad dressing the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Salad dressing (1-2 tbs.)	Never;Less than once per month;1-3 tbs. per month;1 tbs. per week;2-4 tbs. per week;5-6 tbs. per week;1 tbs. per day;2-3 tbs. per day;4 or more tbs. per day	Never;Less than once per month;1-3 tbs. per month;1 tbs. per week;2-4 tbs. per week;5-6 tbs. per week;1 tbs. per day;2-3 tbs. per day;4 or more tbs. per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09731	Food Frequency Questionnaire - (FFQ)-apricots indicator	FFQApriInd	Average amount of apricots the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average amount of apricots the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Apricots (1 fresh, 1/2 canned or 5 dried)	Never;Less than once per month;1-3 per month;Once per week;2-4 per week;5 or more servings per week	Never;Less than once per month;1-3 per month;Once per week;2-4 per week;5 or more servings per week	Alphanumeric	Please fill in your average total use, during the past year, of each specified food. 'Please try to average your seasonal use of foods over the entire year. For example, if a food such as cantaloupe is eaten 4 times a week during the 3 months that it is in season, then average total use would be once per week over the year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09667	Food Frequency Questionnaire - (FFQ)-vitamin D duration	FFQVitDDur	How long have you taken Vitamin D, as part of Food Frequency Questionnaire -(FFQ)	How long have you taken Vitamin D, as part of Food Frequency Questionnaire -(FFQ)	How long?	0-1 year;2-4 years;5-9 years;10 years or more	0-1 year;2-4 years;5-9 years;10 years or more	Alphanumeric	No instructions available	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09763	Food Frequency Questionnaire - (FFQ)-bacon indicator	FFQBacnInd	Average total amount of bacon the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of bacon the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Bacon (2 slices)	Never;Less than once per month;Once per week;2-4 times per week;5-6 times per week;1 or more servings per day;1-3x/mo	Never;Less than once per month;Once per week;2-4 times per week;5-6 times per week;1 or more servings per day;1-3x/mo (1-3 times per month)	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09826	Food Frequency Questionnaire - (FFQ)-regular popcorn indicator	FFQRegPopcrnInd	Average total amount of regular popcorn the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of regular popcorn the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Regular popcorn (3 cups)	Never;Less than once per month;1-3 servings per month;1 serving per week;2-4 servings per week;5-6 servings per week;1 serving per day;2 or more servings per day	Never;Less than once per month;1-3 servings per month;1 serving per week;2-4 servings per week;5-6 servings per week;1 serving per day;2 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09699	Food Frequency Questionnaire - (FFQ)-regular ice cream indicator	FFQRegIceCrmInd	Average total amount of regular ice cream the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of regular ice cream the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Regular ice cream (1 cup)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Alphanumeric	For each food listed, indicate your average total use of the amount specified during the past year	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09795	Food Frequency Questionnaire - (FFQ)-tortillas indicator	FFQTortInd	Average total amount of tortillas the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of tortillas the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Tortillas (2)	Never;Less than once per month;1-3 per month;1 per week;2-4 per week;5-6 per week;1 per day;2-3 per day;4 or more per day	Never;Less than once per month;1-3 per month;1 per week;2-4 per week;5-6 per week;1 per day;2-3 per day;4 or more per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09869	Food Frequency Questionnaire - (FFQ)-special diet indicator	FFQSpecDietInd	Indicator of whether or not the subject follows a special diet, as part of Food Frequency Questionnaire -(FFQ)	Indicator of whether or not the subject follows a special diet, as part of Food Frequency Questionnaire -(FFQ)	Do you currently follow a special diet?	No;Yes	No;Yes	Alphanumeric	If No, skip to FFQ Q18	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09742	Food Frequency Questionnaire - (FFQ)-raw carrots indicator	FFQRawCarrInd	Average total amount of raw carrots the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of raw carrots the subject had over this past year, as part of Food Frequency Questionnaire -(FFQ)	Carrots, raw (1/2 carrot or 2-4 sticks)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09678	Food Frequency Questionnaire - (FFQ)-zinc indicator	FFQZnInd	Zinc indicator, as part of Food Frequency Questionnaire -(FFQ)	Zinc indicator, as part of Food Frequency Questionnaire -(FFQ)	Not counting multi-vitamins, do you currently take Zinc?	No;Yes, currently take it	No;Yes, currently take it	Alphanumeric	Do not report content of multi-vitamins mentioned in Q1. If no, skip to FFQ Q2-10	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09774	Food Frequency Questionnaire - (FFQ)-pork main dish indicator	FFQPrkManDisInd	Average total amount of pork a main dish the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of pork a a main dish the subject had this past year, as part of Food Frequency Questionnaire -(FFQ)	Pork as a main dish, e.g., ham or chops (4-6 oz.)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;1 or more times per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;1 or more times per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09837	Food Frequency Questionnaire - (FFQ)-fat free reduced sweet roll coffee cake other pastry indicator	FFQFatFrqRedSwRolCffCkOthPstIn	Average total amount of fat free or reduced fat sweet roll, coffee cake or other pastry, the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Average total amount of fat free or reduced fat sweet roll, coffee cake or other pastry, the subject ate this past year, as part of Food Frequency Questionnaire -(FFQ)	Sweet roll, coffee cake or other pastry, fat free or reduced fat (serving)	Never;Less than once per month;1-3x/mo;Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Never;Less than once per month;1-3x/mo (1-3 times per month);Once per week;2-4 times per week;5-6 times per week;Once per day;2 or more servings per day	Alphanumeric	Please fill in your average total use, during the past year, of each specified food.	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected
C09710	Food Frequency Questionnaire - (FFQ)-margarine spreadable butter indicator	FFQMarSprButInt	Form of margarine or spreadable butter the subject usually uses, as part of Food Frequency Questionnaire -(FFQ)	Form of margarine or spreadable butter the subject usually uses, as part of Food Frequency Questionnaire -(FFQ)	What form of margarine or spreadable butter do you usually use?	None;Stick;Tub;Spray;Squeeze	None;Stick;Tub;Spray;Squeeze	Alphanumeric	Exclude pure butter	W.C. Willett, Nutritional Epidemiology, Oxford University Press Validation of a semi-quantitative food frequency questionnaire: comparison with a 1-year diet record.Willett WC, Reynolds RD, Cottrell-Hoehner S, Sampson L, Browne ML.J Am Diet Assoc. 1987 Jan;87(1):43-7. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9. Food-based validation of a dietary questionnaire: the effects of week-to-week variation in food consumption. Salvini S, Hunter DJ, Sampson L, Stampfer MJ, Colditz GA, Rosner B, Willett WC. Int J Epidemiol. 1989 Dec;18(4):858-67. Validation of a dietary questionnaire with plasma carotenoid and alpha-tocopherol levels.Willett WC, Stampfer MJ, Underwood BA, Speizer FE, Rosner B, Hennekens CH.Am J Clin Nutr. 1983 Oct;38(4):631-9.	Adult	Exploratory	3.00	2013-07-22 09:34:41.527	Food Frequency Questionnaire (FFQ)	Epidemiology/Environmental History	Participant History and Family History		Single Pre-Defined Value Selected

1
2
3
4
5
next ›
last »