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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

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

Author Information

aDepartment of Hygiene and Epidemiology, Cardiovascular R&D Unit, University of Porto Medical School, Portugal

bInstitute of Public Health of the University of Porto (ISPUP), Porto, Portugal

Received 9 June, 2008

Revised 30 December, 2008

Accepted 30 December, 2008

Correspondence to Marta Pereira, Department of Hygiene and Epidemiology, University of Porto Medical School, Alameda Prof Hernâni Monteiro, 4200-319 Porto, Portugal Tel: +351 22 551 36 52; fax: +351 22 551 36 53; e-mail: martasfp@med.up.pt

© 2009 Lippincott Williams & Wilkins, Inc.