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Background: Nutritional research in sub-Saharan Africa has primarily focused on under-nutrition, particularly among vulnerable population subgroups such as women and children. However, there is growing evidence of an ongoing epidemiological and nutritional transition in these settings.

Objective: This study aimed to examine the geographic variation of combined overweight and obesity prevalence at the state-level among women in Nigeria, while accounting for individual-level risk factors.

Methods: Our analysis was based on the 2008 Nigerian Demographic and Health Survey (NDHS), including 27,967 women aged 15 and over. Individual data were collected on socio-demographic variables, but were aggregated to the 31 states. We used a Bayesian geo-additive mixed model to map the geographic distribution of overweight/obesity at the state-level, accounting for individual-level risk factors.

Results: The …