Participants
substance abuse disorder, anxiety disorder, social phobia, panic disorder, dementia, psychiatric, F41.0, F32-F33, depression, F41.1
Persons were deemed eligible for the trial if they were ≥ 18-years of age, had been on sick leave for ≥ 4 weeks (irrespective of employment status) and received sickness benefit. Also, they had to be diagnosed with either depression (F32-F33), generalized anxiety disorder (F41.1), social phobia (F40.1) or panic disorder (F41.0). They also had to be proficient in Danish and reside in one of the collaborating municipalities. Persons were ineligible if they were pregnant, deemed at moderate or high risk of suicide, had substance abuse disorder that would hinder psychotherapy, had an unstable general medical condition, showed signs of dementia or were unwilling to refrain from engaging in psychotherapy outside the study during treatment (if allocated to groups INT or MHC). Eligibility was evaluated by trained mental health professionals and supervised by a psychiatric specialist. The instruments that guided the assessment are described in Supplement 2. The intended number of participants was acquired, and the sample size and power calculations are described in the study design paper [