The study compares the effects of two add-on interventions in primary care rehabilitation, on work ability and psychological health, in workers with common mental disorders. One intervention consists of a person-centered plan using work-directed treatment modules of occupational therapy and physical therapy, during 8 weeks. The other intervention consists of supported physical activity during 8 weeks. The primary outcome is work ability, measured by the work ability index and days on sick leave.

Common mental disorders (CMD), including mild to moderate depression, anxiety disorders and exhaustion disorder, are a major cause of sick leave and work disability. Compared to other disorders, work-related problems associated with CMD is sparsely explored. While recommended treatments, such as antidepressants or cognitive behavioral therapy have effects on psychiatric symptoms, the effect on work capacity is unclear, suggesting a need for alternative interventions.

The aim of this study is to evaluate the effects of an add-on work-directed intervention in primary care rehabilitation, compared to a physical activity control, for persons with CMD.

The goal of the experimental condition is to enhance the participant's ability to work by creating an individually tailored plan for self-management, supported by occupational and physical therapy techniques, such as structuring daily activities, stress management or body awareness techniques. Enhancing self-management is the core of this intervention and also a new approach compared to earlier efforts to promote work capacity.

Inclusion Criteria:

• Unipolar depression or anxiety disorder according to the Mini Neuropsychiatric Interview (DSM-5 criteria).
• Currently working to some extent, part time sick leave is accepted.

Exclusion Criteria:

• Substance abuse according to the Mini interview
• High suicide risk according to the Mini interview
• Psychotic symptoms according to the Mini interview