1. 1Department of Epidemiology and Biostatistics, Addis Continental Institute of Public Health, Addis Ababa, Ethiopia;
2. 2Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts;
3. 3Nouna Health Research Center, Nouna, Burkina Faso;
4. 4Department of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia;
5. 5Department of Statistics, University of Ibadan, Ibadan, Nigeria;
6. 6Institut Supérieur des Sciences de la Population, Université de Ouagadougou, Ouagadougou, Burkina Faso;
7. 7College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia;
8. 8Institut Supérieur des Sciences de la Population, University of Ouagadougou, Ouagadougou, Burkina Faso;
9. 9University of Ibadan Research Foundation, University of Ibadan, Ibadan, Nigeria