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Prevalence of overweight and obesity in Nigeria: Systematic review and meta-analysis of population-based studies

Author

Listed:
  • Innocent Ijezie Chukwuonye
  • Kenneth Arinze Ohagwu
  • Okechukwu Samuel Ogah
  • Collins John
  • Efosa Oviasu
  • Ernest Ndukaife Anyabolu
  • Ignatius Ugochukwu Ezeani
  • Gabriel Uche Paschal Iloh
  • Miracle Erinma Chukwuonye
  • Caleb Ogechi Raphael
  • Uwa Onwuchekwa
  • Umezurike Hughes Okafor
  • Clement Oladele
  • Emmanuel Chukwuebuka Obi
  • Chimezie Godswill Okwuonu
  • Okechukwu Iheji
  • Ogbonna Collins Nwabuko
  • Martin Anazodo Nnoli
  • Ikechi G Okpechi

Abstract

In Nigeria, several studies have assessed the prevalence of overweight/obesity with different reports. The purpose of this study was to use a systematic review and meta-analysis to analyze these overweight and obesity reports from different locations in Nigeria over the last ten years. In addition, there was a dearth of systematic reviews and meta-analyses on the prevalence, trends, and demographic characteristics of overweight and obesity in the country. This was a systematic review and meta-analysis of cross-sectional population-based studies among adult Nigerians on the prevalence of overweight/ obesity (defined by body mass index) published from January 2010 to December 2020. Relevant abstracts were scrutinized and articles that included adults of all age groups and were not restricted to a particular group of people (e.g. university community) were selected. Each article was scrutinized by more than 2 authors before selection. The prevalence of overweight/obesity among all participants, among men and among women in Nigeria and its 6 geopolitical zones was determined. All analyses were performed using STATA version 14 (Stata Corp. College Station, Texas, USA). Thirty-three studies were selected and the number of participants was 37,205. The estimated prevalence of overweight and obesity was 27.6%, and 14.5% respectively. The prevalence of overweight among men and among women was 26.3% and 28.3% respectively and, the prevalence of obesity among men and women was 10.9% and 23.0% respectively. The prevalence of overweight in the 6 geopolitical zones was Southeast 29.3%, Southwest 29.3%, South-south 27.9%, Northwest 27.2%, North-central 25.3%, Northeast 20.0% and obesity South-south 24.7%, Southeast 15.7%, Southwest 13.9%, Northwest 10.4%, North-central 10.2%, Northeast 6.4%. Egger’s tests showed no statistically significant publication bias among the studies that reported the overweight and obesity prevalence respectively (p = 0.225, P 0.350). The prevalence of overweight/obesity in Nigeria is high. The southern geopolitical zones had a higher prevalence of overweight/obesity.

Suggested Citation

  • Innocent Ijezie Chukwuonye & Kenneth Arinze Ohagwu & Okechukwu Samuel Ogah & Collins John & Efosa Oviasu & Ernest Ndukaife Anyabolu & Ignatius Ugochukwu Ezeani & Gabriel Uche Paschal Iloh & Miracle Er, 2022. "Prevalence of overweight and obesity in Nigeria: Systematic review and meta-analysis of population-based studies," PLOS Global Public Health, Public Library of Science, vol. 2(6), pages 1-20, June.
    • Handle: RePEc:plo:pgph00:0000515
    DOI: 10.1371/journal.pgph.0000515
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    References listed on IDEAS

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    1. Tara Templin & Tiago Cravo Oliveira Hashiguchi & Blake Thomson & Joseph Dieleman & Eran Bendavid, 2019. "The overweight and obesity transition from the wealthy to the poor in low- and middle-income countries: A survey of household data from 103 countries," PLOS Medicine, Public Library of Science, vol. 16(11), pages 1-15, November.
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    1. Mustapha Titi Yussif & Araba Egyirba Morrison & Reginald Adjetey Annan, 2024. "10-year level, trends and socio-demographic disparities of obesity among Ghanaian adults—A systematic review and meta-analysis of observational studies," PLOS Global Public Health, Public Library of Science, vol. 4(1), pages 1-36, January.

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