C11922
Modified Fatigue Impact Scale (MFIS) - physical uncomfort score
Scale for having been physically uncomfortable as part of Modified Fatigue Impact Scale form
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11930
Modified Fatigue Impact Scale (MFIS) - physical sub score
Sum of MFIS Physical items (range: 0-36)
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C17828
Modified Fatigue Impact Scale-5-Item Version (MFIS-5) - trouble maintaining long physical effort scale
Scale for having had trouble maintaining physical effort for long periods as part of Modified Fatigue Impact Scale 5-Item Version (MFIS-5) form
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11914
Modified Fatigue Impact Scale (MFIS) - pace physical activity score
Scale for having paced self in the physical activities as part of Modified Fatigue Impact Scale form
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C09644
Fatigue Severity Scale (FSS) - prevent sustain physical function scale
Scale used to describe the extent to which fatigue prevented the patient's sustained physical functioning in the past week, as part of the Fatigue Severity Scale (FSS)
Supplemental-Highly Recommended
Fatigue Severity Scale (FSS)
True
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C10854
Grip device width setting value
Value of the width setting on the grip device used to test the participant/subject's grip strength
Exploratory
Grip Strength Fatigue
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11634
Checklist Individual Strength (CIS20R) - physically exhausted feeling scale
Scale assessing the extent to which the following statement has been true for the participant during the last two weeks: Physically I feel exhausted. Part of the Checklist Individual Strength (CIS20R) questionnaire
Supplemental
Checklist for Individual Strength - Fatigue (CIS)
True
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C08505
36-item Short Form Health Survey (SF-36) - Health limited carrying groceries score
Score of surveyee-reported limited lifting or carrying groceries due to physical health as part of version 1.0 of 36-item Short Form Health Survey (SF-36)
Supplemental-Highly Recommended
Short Form 36-Item Health Survey (SF-36)
True
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C17807
Imaging parallel acquisition details text
Text description of any additional details about the parallel acquisition used, if any, in the MRI sequence being reported
Supplemental-Highly Recommended
Diffusion Tensor Imaging (DTI)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11642
Checklist Individual Strength (CIS20R) - rest scale
Scale assessing the extent to which the following statement has been true for the participant during the last two weeks: I am rested. Part of the Checklist Individual Strength (CIS20R) questionnaire
Supplemental
Checklist for Individual Strength - Fatigue (CIS)
True
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C08513
36-item Short Form Health Survey (SF-36) - Cut time on work activities physical health indicator
Indicator for surveyee-reported cut down time on work or other activities as a result of physical health during past 4 weeks as part of version 1.0 of 36-item Short Form Health Survey (SF-36)
Supplemental-Highly Recommended
Short Form 36-Item Health Survey (SF-36)
True
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11650
Checklist Individual Strength (CIS20R) - physical condition excellent feeling scale
Scale assessing the extent to which the following statement has been true for the participant during the last two weeks: Physically I feel I am in excellent condition. Part of the Checklist Individual Strength (CIS20R) questionnaire
Supplemental
Checklist for Individual Strength - Fatigue (CIS)
True
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C10843
Imaging analysis software version number
The version number of the software used for quantitative analysis of the imaging study
Supplemental-Highly Recommended
Positron Emission Tomography (PET)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11923
Modified Fatigue Impact Scale (MFIS) - trouble finish task require think score
Scale for having had trouble finishing tasks that require thinking as part of Modified Fatigue Impact Scale form
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11931
Modified Fatigue Impact Scale (MFIS) - cognitive score
Sum of MFIS Cognitive items (range: 0-40)
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C11915
Modified Fatigue Impact Scale (MFIS) - less motivate physical effort score
Scale for having been less motivated to do anything that requires physical effort as part of Modified Fatigue Impact Scale form
Exploratory
Modified Fatigue Impact Scale (MFIS)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C08236
Imaging scanner software name
Name of the scanner software that runs the imaging camera
Supplemental-Highly Recommended
Magnetic Resonance Imaging (MRI)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C12538
Imaging fast indicator
Indicator of whether or not fast imaging was used
Supplemental-Highly Recommended
Magnetic Resonance Imaging (MRI)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C10685
Imaging slice orientation type
The slice orientation used in imaging acquisition
Supplemental-Highly Recommended
Diffusion Tensor Imaging (DTI)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C12427
Polysomnography study start time
Time at which the sleep study began
Supplemental
Polysomnography (PSG) for ME/CFS
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C10566
Imaging radio frequency coil name
Name of the radio frequency (RF) coil(s) used for the body part scanned
Supplemental-Highly Recommended
Magnetic Resonance Imaging (MRI)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C58409
Blood collection tube catalog number
Catalog number of blood collection tube
Supplemental
Biomarker-Related Sample and Collection Questions
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C12435
Polysomnography blood oxygen saturation mean total sleep measurement
Measurement, in percent, of the mean blood oxygen saturation (Sp02) for total sleep from the polysomnography being reported
Supplemental
Polysomnography (PSG) for ME/CFS
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C10587
Imaging echo spacing value
Measurement, in milliseconds, of the echo spacing used in diffusion acquisition
Supplemental-Highly Recommended
Magnetic Resonance Imaging (MRI)
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
C58417
Ficoll catalog number
Ficoll catalog number
Supplemental
Biomarker-Related Sample and Collection Questions
False
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome