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Numeric Pain Rating Scale (NPRS)

Name of questionnaire Numeric Pain Rating Scale (NPRS)
Type of questionnaire-description,age Assesses the subjective intensity of pain; ages 18 and above
Number of items Not applicable
Number of domains & categories Not applicable
Name of categories/domains   Not applicable
Scaling of items 0-10  Numerical Rating Scale, where 0 =‘no pain’ and 10 = ‘pain as bad as it could be’.
Minimal clinical diff 1-2.2 points (reference?)
Scoring available: with permission or free Permission
Scoring Internal consistency Yes
Scoring Test-retest reliability Yes. A composite pain intensity score calculated from an average of 1 2 ratings across 4 days demonstrated adequate reliability and excellent validity as a measure of the average pain in this sample of chronic pain patients.
Validity Yes
Language English
Translations in other languages (if yes, then list the languages) Not applicable
Developer name -
Developer contact information Copyrighted by Mosby, Inc.
Availability of questionnaire: needs permission from developer, cost or freely available  
Limitations Average pain scores calculated from ratings obtained from a single day were less stable than those calculated from ratings obtained from multiple days.Reliability and validity coefficients may be inadequate for examining the impact of a treatment on the pain ratings of small groups of subjects, or in examining changes in individuals over time.
Link to the questionnaire (if available) Click Here to View the Questionaire
Other comments Patient-rated. Adequate stability  of values required at least 3 measures of pain intensity per day over the course of 4 days.
References (original publication) McCaffery, M., & Beebe, A. (1993). Pain: Clinical Manual for Nursing Practice. Baltimore: V.V. Mosby Company.
Jensen MP, McFarland CA. Increasing the reliability and validity of pain intensity measurement in chronic pain patients.Pain. 1993 Nov;55(2):195-203.