About the Authors

Daniel O. Erim

derim@hsph.harvard.edu

Affiliations Center for Health Decision Science, Department of Health Policy and Management, Harvard School of Public Health, Boston, Massachusetts, United States of America, Harvard University Center for Geographic Analysis, Cambridge, Massachusetts, United States of America

Usman M. Kolapo

Affiliation Indepth Precision Consult, Wuse Zone 4, Abuja, Nigeria

Stephen C. Resch

Affiliation Center for Health Decision Science, Department of Health Policy and Management, Harvard School of Public Health, Boston, Massachusetts, United States of America

Competing Interests

SR and DE are employees of Harvard School of Public Health and their work on this project was supported by a grant from the John D. and Catherine T. MacArthur Foundation. UK is an employee of InDepth Precision LLC, a contract research firm that was contracted by Harvard School of Public Health to help design and carry out the data collection. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: DE UK SR. Performed the experiments: DE UK SR. Analyzed the data: DE UK SR. Contributed reagents/materials/analysis tools: DE UK SR. Wrote the paper: DE UK SR.