Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1107312)
Received: 26 October 2018
Accepted: 28 August 2019
First Online: 7 October 2019
Ethics approval and consent to participate
: The study was reviewed and approved by the University of California, San Francisco Committee for Human Subjects research (IRB number 15–18458) and the Kenya Medical Research Institute Scientific and Ethics Review Unit (protocol ID KEMRI/SERU/CCR/039/3286). The Migori County health leadership also approved the study to be conducted in the county. All participants provided written informed consent prior to participation. Respondents 15 to 17 years were considered emancipated minors as they had all given birth. They therefore consented for themselves.
: Not applicable
: The authors declare that they have no competing interests.