In a client-centred approach, clients and therapists work together to define the occupational performance problem, the focus of and need for intervention and the preferred outcomes. Application of specific theories or techniques to involve clients in goal-setting may influence the therapist to use a client participation approach. The Canadian Occupational Performance Measure (COPM) presents a structure for formulating the treatment goals identified by the client in co-operation with the therapist. The aim of this study was to test the responsiveness of the Swedish version of the COPM. After translation into Swedish, the COPM was introduced to 21 occupational therapists who performed data collection. A sample of 108 clients within geriatric, neurologic and orthopaedic rehabilitation identified 418 problems at initial scoring and reassessment. Inclusion criteria for patients were the need for rehabilitation interventions and the ability to communicate well enough in an interview. The results indicate that the Swedish version of the COPM is responsive to change, with 73% of the problems identified having a change in score of 2 points or more.