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Journal of Hypertension:
doi: 10.1097/HJH.0b013e3283282f65
Original papers: Epidemiology

Differences in prevalence, awareness, treatment and control of hypertension between developing and developed countries

Pereira, Martaa,b; Lunet, Nunoa,b; Azevedo, Anaa,b; Barros, Henriquea,b

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Abstract

Objective: To systematically review quantitative differences in the prevalence, awareness, treatment and control of hypertension between developed and developing countries over the past 6 years.

Methods: We searched Medline [prevalence AND awareness AND treatment AND control AND (hypertension OR high blood pressure)] for population-based surveys. Prevalence, awareness, treatment and control of hypertension were compared between men and women, and between developing and developed countries, adjusting for age. The proportions of awareness, treatment and control were defined relative to the total number of hypertensive patients.

Results: We identified 248 articles, of which 204 did not fulfill inclusion criteria. The remaining articles reported data from 35 countries. Among men, the mean prevalence, awareness, treatment and control of hypertension were 32.2, 40.6, 29.2 and 9.8%, respectively, in developing countries and 40.8, 49.2, 29.1 and 10.8%, respectively, in developed countries. Among women, the mean prevalence, awareness, treatment and control of hypertension were 30.5, 52.7, 40.5, and 16.2%, respectively, in developing countries and 33.0, 61.7, 40.6 and 17.3%, respectively, in developed countries. After adjusting for age, the prevalence of hypertension among men was lower in developing than in developed countries (difference, −6.5%; 95% confidence interval, −11.3 to −1.8%).

Conclusion: There were no significant differences in mean prevalence, awareness, treatment and control of hypertension between developed and developing countries, except for a higher prevalence among men in developed countries. The prevalence, awareness, treatment and control of hypertension in developing countries are coming closer to those in developed countries.

© 2009 Lippincott Williams & Wilkins, Inc.

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