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NINDS CDE Notice of Copyright
Numeric Rating Scale (NRS)-Box 21 Scale
Availability
The instrument is freely available here: Numeric Rating Scale (NRS)-Box 21 Scale
Classification
Classification: Supplemental
Short Description of Instrument
The Numeric Rating Scale (NRS) Box 21 Scale is a simple test that can help to identify a patients pain. The NRS is an internationally accepted and widely used approach to evaluate severity of pain.
Scoring
Pain is rated on a 0-100 numerical rating scale; self-administered; calculate a composite pain intensity NRS score from an average of 12 ratings across 4 days.
References
Dworkin RH, Turk DC, Farrar JT, Haythornthwaite JA, Jensen MP, Katz NP, Kerns RD, Stucki G, Allen RR, Bellamy N, Carr DB, Chandler J, Cowan P, Dionne R, Galer BS, Hertz S, Jadad AR, Kramer LD, Manning DC, Martin S, McCormick CG, McDermott MP, McGrath P, Quessy S, Rappaport BA, Robbins W, Robinson JP, Rothman M, Royal MA, Simon L, Stauffer JW, Stein W, Tollett J, Wernicke J, Witter J; IMMPACT. Core outcome measures for chronic pain clinical trials: IMMPACT recommendations. Pain. 2005;113(1-2):9–19.
 
Jensen MP, Miller L, Fisher LD. Assessment of pain during medical procedures:  a comparison of three scales. Clin J Pain. 1998;14(4):343–349.
 
Jensen MP, McFarland CA. Increasing the reliability and validity of pain intensity measurement in chronic pain patients. Pain. 1993;55(2):195–203.
 
Peters ML, Patijn J, Lamé I. Pain assessment in younger and older pain patients: psychometric properties and patient preference of five commonly used measures of pain intensity. Pain Med. 2007;8(7):601–610.
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