454 HYPERTENSION PREVALENCE IN NORTHERN ANGOLA
2012; Lippincott Williams & Wilkins; Volume: 30; Issue: Supplement 1 Linguagem: Inglês
10.1097/01.hjh.0000420310.10217.c6
ISSN1473-5598
AutoresJoão Paulo da Silva Pires, Yuri V. Sebastião, Ana Carolina Rodrigues, António Langa, Susana Vaz-Nery,
Tópico(s)Global Public Health Policies and Epidemiology
ResumoBackground: Seventy-five million people are estimated to be hypertensive in sub-Saharan Africa1. Accurate data is needed to guide future evidence-driven health policies. Methods: A cross sectional community-based survey of 1464 adults, following the World Health Organization's Stepwise Approach to Chronic Disease Risk Factor Surveillance2,3, was conducted to understand the prevalence of hypertension, awareness, treatment and control in Angola. Using a demographic surveillance systemdatabase4, a representative sample of subjects, stratified by sex and age (18–40 and 41–64), was selected. Results: Prevalence of hypertension (systolic blood pressure ≥ 140 mmHg and/or diastolic blood pressure ≥ 90 mmHg and/or hypertensive therapy) was of 23% (95% CI: 21% to 25.2%). Amongst hypertensive individuals, 26.4% (95% CI: 22% to 31.4%) were aware of their status, 3.2% (95% CI: 1.8% to 5.8%) were on treatment and 1.1% (95% CI: 0.4% to 3%) were controlled. Older subjects were 4.3 times (95% CI 3.3–5.6; P < 0.01) more likely to be hypertensive in comparison to younger, with this association being stronger in women (OR: 8.6; 95% CI 5.9–12.6; P < 0.01). Low degree of education, obesity, alcohol and tobacco use were found to be significantly (P < 0.01) associated with hypertension. Conclusions: Our survey is the first to provide insightful data on hypertension prevalence in Angola. There is an urgent need for strategies to improve prevention, diagnosis and access to adequate treatment in this country, where a massive economic growth5 is feared to impact on lifestyle cardiovascular risk factors, further accelerating the ongoing epidemiological transition. References Twagirumukiza M, De Bacquer D, Kips JG, de Backer G, Stichele RV, Van Bortel LM. Current and projected prevalence of arterial hypertension in sub-Saharan Africa by sex, age and habitat: an estimate from population studies. J Hypertens. 2011;29:1243–52 World Health Organization. STEPS manual [Internet]. [cited 2012 Jan 10]. Available from: http://http://www.who.int/chp/steps/manual/en/index.html World Health Organization. The STEPS Instrument and Support Materials [Internet]. [cited 2012 Jan 10]. Available from: http://http://www.who.int/chp/steps/instrument/en/index.html Sousa Figueiredo J, Gamboa D, Pedro J, Videira C, Langa A, Magalhaes J, et al. Epidemiology of malaria, schistosomiasis, geohelminths, anemia and malnutrition in the context of a demographic surveillance system in northern Angola. Accepted in PLoS One. African Development Bank, African Development Fund. ANGOLA 2011–2015 Country Strategy Paper & 2010 Country Portfolio Performance Review [Internet]. 2011 [cited 2012 Jan 10]. Available from: http://http://www.afdb.org/fileadmin/uploads/afdb/Documents/Project-and-Operations/ORSB%20Angola%20CSP%202011%20-%202015%20En%20Rev%20Version%2BMemox.pdf
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