About the Authors

Bruce A. Larson

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

blarson@bu.edu

Affiliation Department of Global Health, Boston University School of Public Health, Boston, MA, United States of America

Margaret Bii

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliations Kenya Medical Research Institute/Walter Reed Project, Kericho, Kenya, HJF Medical Research International, Inc., Nairobi, Kenya

Nafisa Halim

Roles Data curation, Formal analysis, Writing – original draft, Writing – review & editing

Affiliation Department of Global Health, Boston University School of Public Health, Boston, MA, United States of America

Julia K. Rohr

Roles Conceptualization, Data curation, Funding acquisition, Project administration, Software, Writing – review & editing

Affiliation Harvard Center for Population and Development Studies, Cambridge, MA, United States of America

William Sugut

Roles Conceptualization, Data curation, Funding acquisition, Investigation, Supervision, Writing – review & editing

Affiliations Kenya Medical Research Institute/Walter Reed Project, Kericho, Kenya, HJF Medical Research International, Inc., Nairobi, Kenya

Fredrick Sawe

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Supervision, Writing – review & editing

Affiliations Kenya Medical Research Institute/Walter Reed Project, Kericho, Kenya, HJF Medical Research International, Inc., Nairobi, Kenya

Competing Interests

I have read the journal's policy and the authors of this manuscript have the following competing interests: Co-authors Bii, Sugut, and Sawe work for the HJF Medical Research International, Inc., which is also providing support to the study sites as part of the Government of Kenya's national AIDS response program (also funded in part through the PEPFAR program). While we believe we have been objective in our analysis, we wanted to report the relationship. This does not alter our adherence to PLOS ONE policies on sharing data and materials.