1. Associate Research Scientist African Population and Health Research Center, Population Dynamics and Reproductive Health Program, APHRC Campus 2nd Floor Manga Close, Off Kirawa Road Nairobi Kenya
2. Research Fellow, Faculty of Epidemiology and Population Health London School of Hygiene & Tropical Medicine London United Kingdom
3. Data Analyst African Population and Health Research Center, Population Dynamics and Reproductive Health Program, APHRC Campus 2nd Floor Manga Close, Off Kirawa Road Nairobi Kenya
4. Research Scientist African Population and Health Research Center, Population Dynamics and Reproductive Health Program, APHRC Campus 2nd Floor Manga Close, Off Kirawa Road Nairobi Kenya
5. Emeritus Professor of Medical Demography, Faculty of Epidemiology and Population Health London School of Hygiene & Tropical Medicine London United Kingdom