Cardiovascular risk factors in Sub-Saharan African women

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Summary: Background: Cardiovascular risk factors (CVRF) are associated with major cause of death and disability in Sub-Saharan Africa, especially in women. The contribution of obstetrical, psychological, and socio-economic factors in CVRF are not yet well described in Africa. We aimed to compare the prevalence of CVRF between men and women, and to determine the factors associated to these sex-related differences. Patients and methods: A cross-sectional study was conducted on the 2019 data of the TAHES cohort in a geographically defined general population in Benin. A standardized questionnaire adapted from the World Health Organization (WHO) STEPS instrument was used to collect data. Univariate and multivariate analysis has been performed to determine CVRF differences in both sexes. Women-specific logistic regressions have been performed on CVRF previously identified as positively associated to female sex, to assess their association with socio-economic, psychological, and obstetrical factors. Results: We included 1583 patients, with a median age of 39 years [range: 32–53 years]. Prevalence of diabetes (1.2% vs. 3.4%, p=0.0042), abnormal kidney function (15.5% vs. 8.4%, p=0.0002), obesity (12.5% vs. 4.1%, p<0.0001), tobacco-smoking (3.4% vs. 14.1%, p<0.0001) and reduced physical activity (69.9% vs. 50.7%, p<0.0001) differed significantly between women and men, respectively. In multivariate analysis, female sex was independently and significantly associated with obesity, anxiety, depression and reduced physical activity. Number of pregnancies was associated with a reduced physical activity. Hypertension was associated with gestational hypertension. Conclusions: Obesity and reduced physical activity are significantly and independently more frequent in Beninese women than the male counterparts. Hypertension prevalence in Benin is alarming in both sexes. Targeted prevention strategies against obesity, gestational hypertension and sedentary lifestyle are advocated in African women.

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