The Psychometric Features of the Patient-Rated Wrist Evaluation in Iranians With Scaphoid Or Distal Radius Fracture

Objectives: it is essential to have a suitable instrument for the accurate assessments of pain and disability outcomes during interventions; such tools also help to guide hand surgery and rehabilitation programs in distal radius or scaphoid fracture. this study aimed to evaluate the psychometric features of the patient-rated wrist evaluation (prwe) questionnaire in iranians with a history of scaphoid and distal radius fractures. methods: one hundred and fifty subjects with a history of scaphoid and distal radius fractures were recruited from hospital-based outpatient hand clinics and completed the prwe, 2 and 7 days after the occurrence of fracture. additionally, the quick-disabilities of arm, shoulder, and hand (quick-dash), the percentage of wrist range of motion (%rom), visual analog scale pain/disability (vas-p, vas-d), short-form health survey (sf-36) questionnaires, and pinch and grip strength (%) were conducted in the study participants. cronbach’s alpha (α) coefficient and intraclass correlation coefficient (icc) were used to evaluate the internal consistency and test-retest reliability of the scale, respectively. pearson or spearman correlation coefficient was calculated for assessing the test’s construct validity. results: no floor or ceiling effect was found. a very high test-retest reliability was obtained for the prwe’s total score and subscores (icc≥0.92). cronbach’s α coefficient was obtained as ≥0.78 for the prwe and its subscales. the prwe total score presented a weak to strong (0.24-0.74) correlation with the average values of %rom, %power grip, %pinch strength, vas-p, vas-d, sf-36, and quick-dash. the standard error of the measurement of prwe total score equaled 3.93; its smallest real difference was 10.86. discussion: the prwe presented acceptable validity and excellent reliability for measuring disability and pain in individuals with the scaphoid and distal radius fractures in iran