Peer Reviewed Publications


Mapping access to basic hygiene services in low- and middle-income countries: A cross-sectional case study of geospatial disparities

Abstract Handwashing with water and soap is among the most a cost-effective interventions to improve public health. Yet billions of people globally lacking handwashing facilities with water and soap on premises, with gaps particularly found in low- and middle-income countries. Targeted efforts to expand access to basic hygiene services require data at geospatially explicit scales. Drawing on country-specific cross-sectional Demographic and Health Surveys with georeferenced hygiene data, we developed an ensemble machine learning model to predict the prevalence of basic hygiene facilities in Malawi, Nepal, Nigeria, Pakistan and Uganda.

September 1, 2021

By Weiyu Yu, Robert E.S.Bain, Jie Yu, Victor Alegana, Winfred Dotse-Gborgbortsi, Yi Lin, Jim A.Wright in publication


Prevalence and factors associated with overweight and obesity in selected health areas in a rural health district in Cameroon: a cross-sectional analysis

Abstract Background: Overweight and obesity are major public health problems worldwide, with projections suggesting a proportional increase in the number of affected individuals in developing countries by the year 2030. Evidence-based preventive strategies are needed to reduce the burden of overweight and obesity in developing countries. We assessed the prevalence of, and factors associated with overweight and obesity in selected health areas in West Cameroon. Methods Data were collected from a community-based cross-sectional study, involving the consecutive recruitment of participants aged 18 years or older.

March 1, 2021

By Larissa Pone Simo, Valirie Ndip Agbor, Francine Zeuga Temgoua, Leo Cedric Fosso Fozeu, Divine Tim Bonghaseh, Aimé Gilbert Noula Mbonda, Raymond Yurika, Winfred Dotse-Gborgbortsi and Dora Mbanya in publication


Variation in SARS-CoV-2 outbreaks across sub-Saharan Africa

Abstract A surprising feature of the SARS-CoV-2 pandemic to date is the low burdens reported in sub-Saharan Africa (SSA) countries relative to other global regions. Potential explanations (for example, warmer environments1, younger populations2,3,4) have yet to be framed within a comprehensive analysis. We synthesized factors hypothesized to drive the pace and burden of this pandemic in SSA during the period from 25 February to 20 December 2020, encompassing demographic, comorbidity, climatic, healthcare capacity, intervention efforts and human mobility dimensions.

February 1, 2021

By Benjamin L. Rice, Akshaya Annapragada, Rachel E. Baker, Marjolein Bruijning, Winfred Dotse-Gborgbortsi, Keitly Mensah, Ian F. Miller, Nkengafac Villyen Motaze, Antso Raherinandrasana, Malavika Rajeev, Julio Rakotonirina, Tanjona Ramiadantsoa, Fidisoa Rasambainarivo, Weiyu Yu, Bryan T. Grenfell, Andrew J. Tatem, C. Jessica E. Metcalf in publication


District-level estimation of vaccination coverage: Discrete vs continuous spatial models

Abstract Health and development indicators (HDIs) such as vaccination coverage are regularly measured in many low- and middle-income countries using household surveys, often due to the unreliability or incompleteness of routine data collection systems. Recently, the development of model-based approaches for producing subnational estimates of HDIs using survey data, particularly cluster-level data, has been an active area of research. This is mostly driven by the increasing demand for estimates at certain administrative levels, for example, districts, at which many development goals are set and evaluated.

February 1, 2021

By C. Edson Utazi, Kristine Nilsen, Oliver Pannell, Winfred Dotse-Gborgbortsi, Andrew J. Tatem in publication


The influence of travel time to health facilities on stillbirths: A geospatial case-control analysis of facility-based data in Gombe, Nigeria

Abstract Access to quality emergency obstetric and newborn care (EmONC); having a skilled attendant at birth (SBA); adequate antenatal care; and efficient referral systems are considered the most effective interventions in preventing stillbirths. We determined the influence of travel time from mother’s area of residence to a tertiary health facility where women sought care on the likelihood of delivering a stillbirth. We carried out a prospective matched case-control study between 1st January 2019 and 31st December 2019 at the Federal Teaching Hospital Gombe (FTHG), Nigeria.

January 7, 2021

By Oghenebrume Wariri ,Egwu Onuwabuchi,Jacob Albin Korem Alhassan,Eseoghene Dase,Iliya Jalo,Christopher Hassan Laima,Halima Usman Farouk,Aliyu U. El-Nafaty ,Uduak Okomo ,Winfred Dotse-Gborgbortsi in publication