Aga Khan University - Brain and Mind Institute, Government of Kenya - Department of Mental Health and Substance Use, Mathare National Referral Hospital, Mbagathi Hospital, Vrije Universiteit, Government of Kenya - Department of Mental Health and Substance Use, Government of Kenya - Department of Mental Health and Substance Use, University of Nairobi - Department of Psychiatry, Ministry of Health, Kenya - Division of Adolescent and School Health (DASH), Vrije Universiteit, Kenyatta National Hospital, University of Washington - Institute for Health Metrics and Evaluation and University of Washington - The Institute for Health Metrics and Evaluation