About the Authors

Kathryn L. Spielman

Roles Conceptualization, Formal analysis, Writing – original draft, Writing – review & editing

kspielman@popcouncil.org

Affiliation Population Council, Washington, DC, United State of America

Erica Soler-Hampejsek

Roles Conceptualization, Methodology, Writing – review & editing

Affiliation Independent consultant, Barcelona, Spain

Adamson S. Muula

Roles Writing – review & editing

Affiliation University of Malawi, College of Medicine, Blantyre, Malawi

Lyson Tenthani

Roles Writing – review & editing

Affiliation ICAP Malawi, Lilongwe, Malawi

Paul C. Hewett

Roles Conceptualization, Funding acquisition, Methodology, Writing – review & editing

Affiliation Population Council, Washington, DC, United State of America

Competing Interests

Dr. Soler-Hampejsek is an independent consultant. When the study began, she was a full-time employee of Population Council, and has continued her role as a co-Investigator after she left Population Council and became an independent consultant. Her contract with Population Council is as an individual, not a commercial entity and not a funder of the research. Therefore, she has no commercial affiliation with the study. This does not alter our adherence to PLOS ONE policies on sharing data and materials. The authors have declared that no competing interests exist.