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Individual and contextual predictors of overweight or obesity among women in Uganda: a spatio-temporal perspective

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Abstract

Being overweight and obesity are emerging public health issues in sub-Saharan Africa. Currently, there is limited knowledge on the temporal trend of the effect of socioeconomic factors and air quality on being overweight or obesity. Using data from the Ugandan Demographic and Health Survey and NASA’s Socioeconomic Data and Applications Center (SEDAC), we examined the spatio-temporal effect of individual and contextual factors on overweight and obesity among women in Uganda using cross-sectional data on 15,655 women in Uganda. We employed multilevel mixed-effect analysis and Bayesian hierarchical spatial models to examine the effect of individual socioeconomic status, contextual socioeconomic factors and air quality on women’s risk of being overweight or obese as well as investigate spatial heterogeneity in the association. The prevalence of overweight/obesity for the study periods were 17.23% (2000/2001), 15.36% (2006), 19.36% (2011) and 21.93% (2016). The result from the multilevel analysis shows change in the directions of the association between individual factors (educational status and household wealth) and overweight or obese over the years. Women with secondary education were 1.514 times (p = 0.002) more likely to be overweight or obese in the 2000/2001 group but 0.655 times (p = 0.007) less likely to be overweight or obese in the 2016 group. It also reveals temporal consistency in the effect of the air pollutant PM2.5 on overweight or obese. The spatial models reveal spatial heterogeneity in the association between district-level factors and the proportion of overweight or obese women. The findings suggest improving women’s socioeconomic status and air quality could reduce the rising obesity epidemic in Ugandan women.

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Data availability

The Ugandan survey data is available via the Demographic and Health Survey program data portal (https://dhsprogram.com/Data/). Interested parties have to register on the portal for the data. We do not have permission to share this data. The aggregate data used for the Bayesian spatial and spatio-temporal hierarchical modelling are available upon request. PM2.5 dataset is available on NASA’s Socioeconomic Data and Applications Center (SEDAC) (https://sedac.ciesin.columbia.edu/data/sets/browse). Again, interested parties have to register to access the data and the authors do not have permission to share the data.

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The code for the research is available upon request.

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Acknowledgements

Prince M. Amegbor, Megan Davies and Clive E. Sabel acknowledge support from BERTHA—the Danish Big Data Centre for Environment and Health funded by the Novo Nordisk Foundation Challenge Programme (grant NNF17OC0027864). We are also grateful to the NASA Socioeconomic Data and Applications Center (SEDAC), the USAID DHS programme, and Uganda Bureau of Statistics for the data used in this study.

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Correspondence to Prince M. Amegbor.

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The authors declare no conflict of interest in carrying out this research.

Ethical approval

The data for this study was obtained from the Demographic and Health Survey (DHS) platform. Procedures and questionnaires for standard DHS surveys have been reviewed and approved by the ICF Institutional Review Board (IRB). Additionally, country-specific DHS survey protocols are reviewed by the ICF IRB and typically by an IRB in the host country. ICF IRB ensures that the survey complies with the U.S. Department of Health and Human Services regulations for the protection of human subjects (45 CFR 46), while the host country IRB ensures that the survey complies with laws and norms of the nation. No further ethics approval was needed for this study.

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Figure S1. Information on missing data (TIF 861 KB)

Figure S2. Analytical steps for the multilevel and Bayesian spatial modelling (TIF 883 KB)

10708_2021_10466_MOESM3_ESM.tiff

Figure S3. Proportional distribution of overweight or obese women in Uganda by districts and UDHS period. Generated with R software using the tmap and tmaptools packages (TIFF 6225 KB)

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Amegbor, P.M., Yankey, O., Davies, M. et al. Individual and contextual predictors of overweight or obesity among women in Uganda: a spatio-temporal perspective. GeoJournal 87, 3793–3813 (2022). https://doi.org/10.1007/s10708-021-10466-7

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  • DOI: https://doi.org/10.1007/s10708-021-10466-7

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