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Prevalence, awareness, treatment, and control of hypertension in Nigeria in 1995 and 2020: A systematic analysis of current evidence.

ABSTRACT: Improved understanding of the current burden of hypertension, including awareness, treatment, and control, is needed to guide relevant preventative measures in Nigeria. A systematic search of studies on the epidemiology of hypertension in Nigeria, published on or after January 1990, was conducted. The authors employed random-effects meta-analysis on extracted crude hypertension prevalence, and awareness, treatment, and control rates. Using a meta-regression model, overall hypertension cases in Nigeria in 1995 and 2020 were estimated. Fifty-three studies (n = 78 949) met our selection criteria. Estimated crude prevalence of pre-hypertension (120-139/80-89 mmHg) in Nigeria was 30.9% (95% confidence interval [CI]: 22.0%-39.7%), and the crude prevalence of hypertension (≥140/90 mmHg) was 30.6% (95% CI: 27.3%-34.0%). When adjusted for age, study period, and sample, absolute cases of hypertension increased by 540% among individuals aged ≥20 years from approximately 4.3 million individuals in 1995 (age-adjusted prevalence 8.6%, 95% CI: 6.5-10.7) to 27.5 million individuals with hypertension in 2020 (age-adjusted prevalence 32.5%, 95% CI: 29.8-35.3). The age-adjusted prevalence was only significantly higher among men in 1995, with the gap between both sexes considerably narrowed in 2020. Only 29.0% of cases (95% CI: 19.7-38.3) were aware of their hypertension, 12.0% (95% CI: 2.7-21.2) were on treatment, and 2.8% (95% CI: 0.1-5.7) had at-goal blood pressure in 2020. Our study suggests that hypertension prevalence has substantially increased in Nigeria over the last two decades. Although more persons are aware of their hypertension status, clinical treatment and control rates, however, remain low. These estimates are relevant for clinical care, population, and policy response in Nigeria and across Africa.

SUBMITTER: Adeloye D

PROVIDER: S-EPMC8678849 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Prevalence, awareness, treatment, and control of hypertension in Nigeria in 1995 and 2020: A systematic analysis of current evidence.

Adeloye Davies D Owolabi Eyitayo O EO Ojji Dike B DB Auta Asa A Dewan Mary T MT Olanrewaju Timothy O TO Ogah Okechukwu S OS Omoyele Chiamaka C Ezeigwe Nnenna N Mpazanje Rex G RG Gadanya Muktar A MA Agogo Emmanuel E Alemu Wondimagegnehu W Adebiyi Akindele O AO Harhay Michael O MO

Journal of clinical hypertension (Greenwich, Conn.) 20210218 5

Improved understanding of the current burden of hypertension, including awareness, treatment, and control, is needed to guide relevant preventative measures in Nigeria. A systematic search of studies on the epidemiology of hypertension in Nigeria, published on or after January 1990, was conducted. The authors employed random-effects meta-analysis on extracted crude hypertension prevalence, and awareness, treatment, and control rates. Using a meta-regression model, overall hypertension cases in N ...[more]

PMID: 33600078

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Project description:ObjectiveTo analyse published literatures on prevalence, awareness, risk factors and control of hypertension in Nepal.MethodsWe used electronic databases to search relevant articles from January 2000 till October 2020. All relevant data from selected studies were extracted into a standardized form designed in Excel. Statistical analysis was conducted using Comprehensive Meta-Analysis Software (CMA) version 3. Proportions or Odds Ratio (OR) was used to estimate the outcome with 95% confidence interval (CI). The I-squared (I2) test was used for the assessment of heterogeneity.ResultsWe identified a total of 3726 studies after comprehensive database searching. We performed qualitative and quantitative analysis of 40 studies. Pooling data showed 28.52% of patients with hypertension (CI: 26.40-30.75); 45.28% (CI: 38.89-51.83) aware of their high blood pressure; 31.66% (CI: 23.18-41.56) under treatment; 44.4% (CI: 36.17-53.04) had their blood pressure under optimum range. 27.4% (CI: 21.57-34.11) had pre-hypertensive range elevated blood pressure. 25.99% (CI: 21.81-30.65) of females and 34.25% (CI: 30.49-38.21) of male were hypertensive (p = 0.007).The pooling of data showed smokers have 1.43 times (CI: 1.1429-1.7889); and alcohol users have 2.073 times (CI: 1.7154-2.5050) higher risk of having hypertension. Individuals with normal BMI have 53.15% (OR: 0.4685 CI: 0.3543-0.6195); with formal educated have 37.27% (OR: 0.6273, CI: 0.5485-0.7175); and with adequate exercise have 31.6% (OR: 0.6839, CI: 0.5203-0.8991) lower chance of having hypertension.ConclusionOur study shows the prevalence of hypertension in Nepal is high. However, awareness, treatment and subsequently control of high blood pressure are found to be alarmingly low. Hypertension was associated with male gender, smoking, alcohol use, high BMI, no education and inadequate exercise. It calls for more attention to address the burden of hypertension and associated risk factors in Nepal.

Project description:BackgroundHypertension is a major health problem in Ghana, being a leading cause of admissions and deaths in the country. In the context of a changing food and health policy environment, we undertook a systematic review (PROSPERO registration number: CRD42020177174) and a meta-analysis of the prevalence of adult hypertension, and its awareness and control in Ghana.MethodsWe searched major databases including PubMed, Embase as well as Google Scholar and online digital collections of public universities of Ghana to locate relevant published and unpublished community-based articles up till April 2020.FindingsEighty-five articles involving 82,045 apparently-healthy subjects aged 15-100 years were analyzed. In individual studies, the prevalence of hypertension, defined in most cases as blood pressure ≥ 140/90 mmHg, ranged from 2.8% to 67.5%. The pooled prevalence from the meta-analysis was 27.0% (95% CI 24.0%-30.0%), being twice as high in the coastal (28%, 95% CI: 24.0%-31.0%) and middle geo-ecological belts (29%, 95% CI: 25.0%-33.0%) as in the northern belt (13%, 95% CI: 7.0%-21.0%). The prevalence was similar by sex, urban-rural residence or peer-review status of the included studies. It did not appear to vary over the study year period 1976-2019. Of the subjects with hypertension, only 35% (95% CI: 29.0%-41.0%) were aware of it, 22% (95% CI: 16.0%-29.0%) were on treatment and 6.0% (95% CI: 3.0%-10.0%) had their blood pressure controlled. Sensitivity analyses corroborated the robust estimates. There was, however, high heterogeneity (I2 = 98.7%) across the studies which was partly explained by prevalent obesity in the subjects.ConclusionMore than one in four adults in Ghana have hypertension. This high prevalence has persisted for decades and is similar in rural and urban populations. With the low awareness and poor control of hypertension, greater investments in cardiovascular health are required if Ghana is to meet the global target for hypertension.

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Prevalence, awareness, treatment, and control of hypertension in Nigeria in 1995 and 2020: A systematic analysis of current evidence.

Publications

Prevalence, awareness, treatment, and control of hypertension in Nigeria in 1995 and 2020: A systematic analysis of current evidence.

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