1. Health Services Unit Kenya Medical Research Institute‐Wellcome Trust Research Programme Nairobi Kenya
2. School of Mathematics University of Nairobi Nairobi Kenya
3. Department of Non‐Communicable Disease Epidemiology London School of Hygiene and Tropical Medicine London UK
4. Center for Statistics Universiteit Hasselt Hasselt Belgium
5. Interuniversity Institute for Biostatistics and Statistical Bioinformatics Katholieke Universiteit Leuven Belgium
6. Nuffield Department of Medicine University of Oxford Oxford UK
7. Department of Infectious Disease Epidemiology London School of Hygiene and Tropical Medicine London UK
8. Mwanza Intervention Trials Unit Mwanza Tanzania