Norwegian version of the Canadian Occupational Performance Measure in patients with hand osteoarthritis: validity, responsiveness, and feasibility.
OBJECTIVE
To test the Norwegian version of the Canadian Occupational Performance Measure (COPM) for validity, responsiveness, and feasibility in patients with hand osteoarthritis.


METHODS
Seventy-nine patients completed a COPM interview and several self-reported health status questionnaires, including Arthritis Impact Measurement Scales 2, modified Health Assessment Questionnaire; Western Ontario and McMaster Universities Osteoarthritis Index, and the Australian/Canadian Osteoarthritis Hand Index. Rescoring of the same instruments was performed 4 months later, after an intervention.


RESULTS
The COPM detected a great variability of occupational performance problems. The hypotheses for testing validity were confirmed. Mean COPM change was 1.51 (P < 0.001) in performance score, and 2.22 (P < 0.001) in satisfaction score. The median time spent on the COPM interview was 30 minutes (range 10-70 minutes). The patients found the questions easy to understand, but 37% reported problems performing the scoring procedure.


CONCLUSIONS
The Norwegian version of the COPM is a valid and responsive instrument for use in clinical practice in osteoarthritis patients. It may serve as an instrument to promote a client-centered approach and as a supplement to other health measures in the planning and evaluating of interventions. Feasibility regarding scoring needs to be improved.
Diakonhjemmet Hospital, Oslo, Norway. ingvild.kjeken@nrrk.no
Ingvild
I
Kjeken
Barbara
B
Slatkowsky-Christensen
Tore K
TK
Kvien
Till
T
Uhlig
D000368:Aged; D002170:Canada; D005240:Feasibility Studies; D005260:Female; D006225:Hand; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway; D010003:Osteoarthritis / Q000175:diagnosis*