[1] Addis Continental Inst Publ Hlth, Dept Epidemiol & Biostat, Addis Ababa, Ethiopia
[2] Harvard Univ, Harvard TH Chan Sch Publ Hlth, Dept Global Hlth & Populat, Boston, MA 02215 USA
[3] Nouna Hlth Res Ctr, Nouna, Burkina Faso
[4] Addis Ababa Univ, Sch Publ Hlth, Coll Hlth Sci, Dept Prevent Med, Addis Ababa, Ethiopia
[5] Univ Ibadan, Dept Stat, Ibadan, Nigeria
[6] Univ Ouagadougou, Inst Super Sci Populat, Ouagadougou, Burkina Faso
[7] Haramaya Univ, Coll Hlth & Med Sci, Harar, Ethiopia
[8] Univ Ibadan, Univ Ibadan Res Fdn, Ibadan, Nigeria