About the Authors

Sandra I. McCoy

smccoy@berkeley.edu

Affiliation Division of Epidemiology, University of California, Berkeley, California, United States of America

Carolyn Fahey

Affiliation Division of Epidemiology, University of California, Berkeley, California, United States of America

Aarthi Rao

Affiliation Enterprise Product Innovation, CVS Health, Rhode Island, United States of America

Ntuli Kapologwe

Affiliation Regional Medical Office, Ministry of Health, Community Development, Gender, Elderly, and Children, Shinyanga, Tanzania

Prosper F. Njau

Affiliation Prevention of Mother-to-Child HIV Transmission Programme, Ministry of Health, Community Development, Gender, Elderly, and Children, Dar es Salaam, Tanzania

Sergio Bautista-Arredondo

Affiliation Health Economics Department, National Institute of Public Health, Cuernavaca, Mexico

Competing Interests

Ms. Aarthi Rao is currently employed by CVS Health. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: SM SBA. Formal analysis: SM CF AR PN. Funding acquisition: SM SBA. Investigation: SM CF AR PN. Methodology: SM CF AR PN SBA. Project administration: SM NK PN. Resources: SM CF AR NK PN. Software: CF. Supervision: SM NK PN SBA. Visualization: SM CF AR. Writing – original draft: SM. Writing – review & editing: SM CF AR NK PN SBA.