1. Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
2. Department of Health Research Methods, Evidence, and Impact, Faculty of Health Science, McMaster University, Hamilton, Canada
3. Department of Mental Health and Behavioral Sciences, School of Medicine, College of Health Sciences, Moi University, Eldoret, Kenya
4. Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Canada
5. Department of Psychiatry, University of Toronto, Toronto, Canada
6. Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
7. Department of Medicine, Brain and Mind Institute, Aga Khan University Medical College, Nairobi, Kenya
8. Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
9. Department of Biostatistics, Brown University, Providence, Rhode Island, USA
10. Department of Epidemiology and Medical Statistics, School of Public Health, College of Health Sciences, Moi University, Eldoret, Kenya