n Cardiovascular Journal of Africa - Prevalence and risk factors for hypertension and association with ethnicity in Nigeria : results from a national survey : cardiovascular topics




Non-communicable diseases are now a global priority. We report on the prevalence of hypertension and its risk factors, including ethnicity, in a nationally representative sample of Nigerian adults recruited to a survey of visual impairment.

A multi-stage, stratified, cluster random sample with probability proportional to size procedures was used to obtain a nationally representative sample of 13 591 subjects aged ≥ 40 years. Of these, 13 504 (99.4%) had a blood pressure measurement.
The prevalence of hypertension was 44.9% [95% confidence interval (CI): 43.5-46.3%]. Increasing age, gender, urban residence and body mass index were independent risk factors ( < 0.001). The Kanuri ethnic group had the highest prevalence of hypertension (77.5%, 95% CI: 71.0-84.0%).
The high prevalence of hypertension in Nigeria is a cause for concern and suggests that it is inevitable that the impact of hypertension-related ill health is imminent, with the accompanying financial and societal costs to families and the state of Nigeria.


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