Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP52037)
Text and Data Mining valid from 2019-11-08
Received: 26 October 2018
Accepted: 18 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: All study procedures were approved by the Institutional Review Board (IRB) at the University of North Carolina at Chapel Hill and the Kenya Medical Research Institute Ethical Review Committee. All participants provided verbal consent to participate in the study. Verbal consent, rather than written consent, was considered appropriate for this study by each of the in-country ethics committees because it is the standard procedure used for these types of large-scale demographic surveys.
: Not applicable.
: The authors declare they have no competing interests.