About the Authors

Fiona R. Parrott

f.r.parrott@uva.nl

Affiliations Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom, Amsterdam Institute for Social Science Research (AISSR), University of Amsterdam, Amsterdam, The Netherlands

Charles Mwafulirwa

Affiliation Karonga Prevention Study, Chilumba, Malawi

Bagrey Ngwira

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Sothini Nkhwazi

Affiliation Karonga Prevention Study, Chilumba, Malawi

Sian Floyd

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Rein M. G. J. Houben

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Judith R. Glynn

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Amelia C. Crampin

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Neil French

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FRP NF. Performed the experiments: FRP SN CM BN NF. Analyzed the data: FRP JRG SN SF ACC NF RMGJH. Wrote the paper: FRP. Contributed to writing the manuscript: JRG CM BN SN SF RMGJH ACC NF.