1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
2. Behavioral Science Department, School of Medicine, College of Health Sciences, Moi University, Eldoret, Kenya
3. Academic Model Providing Access to Healthcare (AMPATH) Partnership, Eldoret, Kenya
4. Mental Health Department, School of Medicine, College of Health Sciences, Moi University, Eldoret, Kenya
5. Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
6. Department of Epidemiology and Medical Statistics, School of Public Health, College of Health Sciences, Moi University, Eldoret, Kenya
7. Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, USA