About the Authors

Daudi Simba

daudisimba@yahoo.com

Affiliation Department of Community Health, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, P.O. Box 65015, Dar-es-Salaam, Tanzania

Deodatus Kakoko

Affiliation Department of Behavioural Sciences, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, P.O. Box 65015, Dar-es-Salaam, Tanzania

Innocent Semali

Affiliation Department of Epidemiology and Biostatistics, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, P.O. Box 65015, Dar-es-Salaam, Tanzania

Anna Kessy

Affiliation Department of Community Health, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, P.O. Box 65015, Dar-es-Salaam, Tanzania

Martha Embrey

Affiliation Management Sciences for Health, Arlington, VA, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: DS DK IS AK ME. Data curation: DS DK IS. Formal analysis: DS DK IS. Funding acquisition: IS. Investigation: DS DK IS AK ME. Methodology: DS DK IS AK. Project administration: IS ME. Resources: DS DK IS AK. Software: DS DK IS AK. Supervision: DS. Validation: DS DK IS. Visualization: DS DK IS AK. Writing – original draft: DS. Writing – review & editing: DS DK IS AK ME.