Overview of all included studies, sorted on publication date in descending order.

•CES-D = Center for Epidemiologic Studies Depression Scale.•BDI = Beck Depression Inventory.•DSQ = Depression Screening Questionnaire.•GHS = General Health Status questionnaire.•HADS-D = Hospital Anxiety and Depression Scale – depression subscale.•ICD-9/10 (-CM) = International Classification of Diseases 9/10 (-Clinical Modification).•MHI-5 = Mental Health Inventory 5-items, a subscale of the 36-item Short-Form Health Survey.•PHQ-9/2 = Patient Health Questionnaire 9 items/2 items.•Scan 2.1 = Schedules for Clinical Assessment in Neuropsychiatry 2.1.•WHO = World Health Organisation.•* Minor depression: ≥1 core symptom (depressed mood or anhedonia) +2–4 depressive symptoms for more than half the time, for ≥2 last weeks.•** Major depression: ≥1 core symptom (depressed mood or anhedonia)+≥5 depressive symptoms for more than half the time, for ≥2 last weeks.