A cohort study of adherence to antidepressants in primary care: the influence of antidepressant concerns and treatment preferences.

Objective: Clinical guidelines recommend that antidepressant treatment should be continued for a minimum of 6 months following response in depression and anxiety disorders. However, adherence to antidepressants is low. This prospective cohort study investigated the influence of patients' antidepressant concerns, treatment preferences, and illness perceptions on adherence to antidepressants over a 6-month period.