About the Authors

Philip W Setel

To whom correspondence should be addressed. E-mail: psetel@unc.edu

Affiliations MEASURE Evaluation/Carolina Population Center, University of North Carolina, Chapel Hill, North Carolina, United States of America , Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, United States of America

Chalapati Rao

Affiliation School of Population Health, University of Queensland, Herston, Australia

Yusuf Hemed

Affiliations MEASURE Evaluation/Carolina Population Center, University of North Carolina, Chapel Hill, North Carolina, United States of America , Tanzania Ministry of Health, Dar es Salaam, Tanzania

David R Whiting

Affiliations MEASURE Evaluation/Carolina Population Center, University of North Carolina, Chapel Hill, North Carolina, United States of America , University of Newcastle upon Tyne School of Clinical Medical Sciences, Newcastle upon Tyne, United Kingdom

Gonghuan Yang

Affiliation Center of Non-Communicable Diseases and Behavioral Risk Factor Studies, Chinese Academy of Medical Sciences, Beijing, China

Daniel Chandramohan

Affiliation Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom

K. G. M. M Alberti

Affiliation Department of Endocrinology and Metabolism, Imperial College London, London, United Kingdom

Alan D Lopez

Affiliation School of Population Health, University of Queensland, Herston, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

All authors contributed to the development of the core VA forms, tabulation list, and validation study. PWS led the writing and was senior investigator for the Tanzanian validation study. CR contributed to writing, and was a senior investigator on the China validation study. YH contributed to writing and editing and was co-investigator on the Tanzania validation study. DRW helped in editing, revision, and data analysis, and was co-investigator on the Tanzania validation study. GY contributed to writing and editing, and was senior investigator on the China validation study. DC helped in editing and revision. KGMMA helped in editing and revision. ADL helped in editing and revision and was Principal Investigator of the NIH NIA study in Tanzania and China.