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Lifestyle and socio-economic inequalities in diabetes prevalence in South Africa: A decomposition analysis

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  • Chipo Mutyambizi
  • Frederik Booysen
  • Andrew Stokes
  • Milena Pavlova
  • Wim Groot

Abstract

Background: Inequalities in diabetes are widespread and are exacerbated by differences in lifestyle. Many studies that have estimated inequalities in diabetes make use of self-reported diabetes which is often biased by differences in access to health care and diabetes awareness. This study adds to this literature by making use of a more objective standardised measure of diabetes in South Africa. The study estimates socio-economic inequalities in undiagnosed diabetes, diagnosed diabetes (self-reported), as well as total diabetes (undiagnosed diabetics + diagnosed diabetics). The study also examines the contribution of lifestyle factors to diabetes inequalities in South Africa. Methods: This cross sectional study uses data from the 2012 South African National Health and Nutrition Examination Survey (SANHANES-1) and applies the Erreygers Concentration Indices to assess socio-economic inequalities in diabetes. Contributions of lifestyle factors to inequalities in diabetes are assessed using a decomposition method. Results: Self-reported diabetes and total diabetes (undiagnosed diabetics + diagnosed diabetics) were significantly concentrated amongst the rich (CI = 0.0746; p

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  • Chipo Mutyambizi & Frederik Booysen & Andrew Stokes & Milena Pavlova & Wim Groot, 2019. "Lifestyle and socio-economic inequalities in diabetes prevalence in South Africa: A decomposition analysis," PLOS ONE, Public Library of Science, vol. 14(1), pages 1-21, January.
    • Handle: RePEc:plo:pone00:0211208
    DOI: 10.1371/journal.pone.0211208
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    1. Ong, Kanyin Liane & Stafford, Lauryn K. & McLaughlin, Susan A. & Boyko, Edward J. & Vollset, Stein Emil & Smith, Amanda E. & Dalton, Bronte E. & Duprey, Joe & Cruz, Jessica A. & Hagins, Hailey & Linds, 2023. "Global, regional, and national burden of diabetes from 1990 to 2021, with projections of prevalence to 2050: a systematic analysis for the Global Burden of Disease Study 2021," Open Access Publications from Kiel Institute for the World Economy 287733, Kiel Institute for the World Economy (IfW Kiel).

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