Dataset Information

High prevalence of hypertension in an agricultural village in Madagascar.

ABSTRACT: Elevated blood pressure presents a global health threat, with rates of hypertension increasing in low and middle-income countries. Lifestyle changes may be an important driver of these increases in blood pressure. Hypertension is particularly prevalent in African countries, though the majority of studies have focused on mainland Africa. We collected demographic and health data from 513 adults living in a community in rural Madagascar. We used generalized linear mixed models to assess body mass index (BMI), age, sex, and attributes related to household composition and lifestyle as predictors of blood pressure and hypertension. The prevalence of hypertension in this cohort was 49.1% (both sexes combined: N = 513; females: 50.3%, N = 290; males: 47.5%, N = 223). Blood pressure, as well as hypertensive state, was positively associated with age and BMI. Lifestyle and household factors had no significant relationships with blood pressure. The prevalence of hypertension was similar to that found in urban centers of other African countries, yet almost double what has been previously found in Madagascar. Future research should investigate the drivers of hypertension in rural communities worldwide, as well as the lifestyle, cultural, and genetic factors that underlie variation in hypertension across space and time.

SUBMITTER: Manus MB

PROVIDER: S-EPMC6095505 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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High prevalence of hypertension in an agricultural village in Madagascar.

Manus Melissa B MB Bloomfield Gerald S GS Leonard Ashley Sobel AS Guidera Laura N LN Samson David R DR Nunn Charles L CL

PloS one 20180816 8

Elevated blood pressure presents a global health threat, with rates of hypertension increasing in low and middle-income countries. Lifestyle changes may be an important driver of these increases in blood pressure. Hypertension is particularly prevalent in African countries, though the majority of studies have focused on mainland Africa. We collected demographic and health data from 513 adults living in a community in rural Madagascar. We used generalized linear mixed models to assess body mass i ...[more]

PMID: 30114223

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Project description:BackgroundHypertension is one of the main risk factors of cardiovascular diseases. In Madagascar, studies on hypertension in urban and rural communities are scarce.ObjectivesThe aim of this study was to determine the prevalence of hypertension and identify associated risk factors in adults living in a health and demographic system in Moramanga, Madagascar.MethodsThe study included people aged 15 years old and above living in a health and demographic system in Moramanga. A household census was performed in 2012 to enumerate the population in 3 communities in Moramanga. In addition to the questionnaire used in the initial census, a standardized questionnaire and blood pressure were taken twice after 5 and 10 minutes of rest. In urban areas, heights and weights were also measured to calculate the body mass index.ResultsThere were 3621 and 4010 participants respectively in rural and urban areas. Prevalence of hypertension in rural population was 27.0% (IC95% [25.6-28.5]) and 29.7% (IC95% [28.3-31.1]) in urban population. Among hypertensive subjects, 1.7% (17/979) and 5.3% (64/1191) were on antihypertensive treatment for at least 1 month before the survey in rural and urban population, respectively. In rural areas, increasing age (65 years and older vs 18-25 years OR = 11.81, IC95% [7.79-18.07]), giving more than 3 positive responses to the usual risks factors of hypertension (OR = 1.67, IC95% [1.14-2.42]) and singles in comparison with married people (OR = 1.61, IC95% [1.20-2.17]) were associated to hypertension in a logistic regression model. In urban areas, increasing age (65 years and older vs 18-25 years OR = 37.54, IC95% [24.81-57.92]), more than 3 positive responses to the usual risks of hypertension (OR = 3.47, IC95% [2.58-4.67]) and obesity (OR = 2.45, IC95% [1.56-3.87]) were found as risk factors.ConclusionHypertension is highly prevalent in rural areas although it is significantly less treated. As a result, a major epidemic of cardiovascular diseases is at risk in Madagascar's progressively aging society.

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High prevalence of hypertension in an agricultural village in Madagascar.

Publications

High prevalence of hypertension in an agricultural village in Madagascar.

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