The Short‐Form McGill Pain Questionnaire as an outcome measure: Test–retest reliability and responsiveness to change

European Journal of Pain - Tập 12 - Trang 917-925 - 2008
Liv Inger Strand1,2, Anne Elisabeth Ljunggren1, Baard Bogen3, Tove Ask2, Tom Backer Johnsen4
1Department of Public Health and Primary Health Care, Section for Physiotherapy Science, University of Bergen, Kalfarveien 31, 5020 Bergen, Norway
2Department of Physiotherapy, Haukeland University Hospital, Bergen, Norway
3Department of Physiotherapy, Haraldsplass Deaconal Hospital, Bergen, Norway
4Department for Psychosocial Research, Section for Psychometrics, University of Bergen, Norway

Tóm tắt

AbstractAbilities of the Short‐Form McGill Pain Questionnaire to assess change have scarcely been addressed in previous studies. The aim of the present study was to examine test–retest reliability, sensitivity to change and responsiveness to clinically important change using a Norwegian version (NSF‐MPQ) in different groups of patients. ICC(1,1) values for test–retest reliability (relative reliability) assessed 1–3 days apart for total, sensory and affective scores were, respectively, 0.75, 0.76 and 0.62 in patients with musculoskeletal pain (n=58), and 0.93, 0.95 and 0.79 in patients with rheumatic pain (n=25). Variability in total scores (absolute reliability) was less in patients with rheumatic pain (within‐subject standard deviation, Sw=2.70) than in patients with musculoskeletal pain (Sw=4.28). Sensitivity to change by standardized response mean (SRM) was mostly large (>0.80) for three patient groups reporting improvement after treatment. More sensitivity to change was demonstrated by the total and sensory scores than by the affective score, and sensitivity of the total score was similarly good to capture improvement as the Visual Analogue Scale (VAS). Indication was provided that mean improvement of groups in NSF‐MPQ total scores should be >5 on the 0–45 scale to demonstrate a clinically important change. Responsiveness to clinically important change by receiver operating characteristic curve analysis was modest, as area under the curve indicating ability to discriminate improved and not improved patients with musculoskeletal pain, was only 0.61. The study indicates mostly satisfactory test–retest reliability and responsiveness values of the NSF‐MPQ, but shows that the measurement properties vary between groups of patients with pain.

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European Journal of Pain

Tập 12

917-925

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