Author contributions
R.T., A.V.K., K.K., N.N., H. Masanja and V.D.A. were responsible for study design. R.T., A.V.K. and V.D.A. came up with the statistical analysis plan. R.T. was responsible for data curation. R.T. and P.T. carried out the formal analysis. K.K., N.N., H. Masanja and V.D.A. acquired funding. R.T., G.K., L.B.L., A.V.K., S.R., C.M., G.A., M.J., I.E.M., P.A. and H. Mhagama carried out the investigation. A.V.K., L.B.L., C.M., S.R. and V.F. were responsible for project administration. R.T., A.V.K., L.B.L., C.M., S.R., V.F., J.T., N.N., H. Masanja. and V.D.A. supervised the project. R.T. wrote the original draft of the paper. R.T., G.K., L.B.L., A.V.K., S.R., C.M., G.A., M.J., I.E.M., P.A., H. Mhagama., A.V., V.F., J.T., G.L., M.-A.L.P., K.K., P.T., N.N., H. Masanja. and V.D.A. wrote, reviewed and edited the final paper. R.T. had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.