About the Authors

Wendy J. Graham

w.graham@abdn.ac.uk

Affiliation Professor of Obstetric Epidemiology, School of Medicine and Dentistry, University of Aberdeen, United Kingdom

Sam Adjei

Affiliation Centre for Health and Social Services (CHeSS), Accra, Ghana

Competing Interests

WJG declares that she is the principal scientist for a research group (Immpact) that undertakes the measurement of population health, including maternal mortality. WJG was one of the peer reviewers for the Lancet article by Hogan et al. that reported the IHME maternal mortality estimates, and was a member of the external Technical Advisory Group for the Inter-agency Group for maternal mortality. SA is a former Board member of the Health Metrics Network, former Deputy Director-General of the Ghana Health Service, former chairman of the country coordinating group of Immpact in Ghana, and former visiting Professor at the University of Aberdeen. He has provided consultancy services to the African Program of Onchocerciasis Control.

Author Contributions

ICMJE criteria for authorship read and met: WJG SA. Agree with the manuscript's results and conclusions: WJG SA. Wrote the first draft of the paper: WJG SA. Contributed to the writing of the paper: WJG SA.