Success in control of hypertension in a low-resource setting: the Cuban experience.

BACKGROUND: Pharmacologic control of hypertension is an essential component of the current strategy to control cardiovascular diseases. Much concern has been focused in recent years on the challenge that cardiovascular disease poses for developing countries. Available medical therapies should be equally effective in low- and high-resource settings; however, this has not yet been demonstrated. Cuba has a well-organized primary-care system and has made reduction of cardiovascular diseases a priority, particularly through detection and treatment of hypertension. METHODS: To determine current hypertension control rates a population-based sample of 1667 persons aged 15-74 years was examined in the city of Cienfuegos. RESULTS: The prevalence of hypertension, weighted to the age structure of the sampled population, was 20%. Among all hypertensives, 78% were previously aware of the condition, 61% were currently taking medications, and 40% had systolic/diastolic blood pressures < 140/90 mmHg (men = 29%, women = 49%). Among treated hypertensives, 62% had blood pressures < 140/90 mmHg. DISCUSSION: The level of control documented in this survey is higher than reported previously from population surveys in other countries. If confirmed in broader samples in Cuba, these findings would suggest that effective control of hypertension is highly feasible in low-resource settings.

Cardiovascular disease and associated risk factors in Cuba: prospects for prevention and control.

OBJECTIVES: An adequate description of the trends in cardiovascular disease (CVD) is not available for most of the developing world. Cuba provides an important exception, and we sought to use available data to offer insights into the changing patterns of CVD there. METHODS: We reviewed Cuban public health statistics, surveys, and reports of health services. RESULTS: CVD has been the leading cause of death since 1970. A 45% reduction in heart disease deaths was observed from 1970 to 2002; the decline in stroke was more limited. There are moderate prevalences of all major risk factors. CONCLUSIONS: The Cuban medical care system has responded vigorously to the challenge of CVD; levels of control of hypertension are the highest in the world. Nonindustrialized countries can decisively control CVD.

Ethnicity, education, and blood pressure in Cuba.

The causes of variation in hypertension risk by ethnicity and educational level are not well understood. To gain further insight into this issue in a nonindustrialized country, a population-based sample of 1,667 persons aged 15-74 years was recruited in Cienfuegos, Cuba. In this 2001-2002 study, interviewers classified 29% of participants as Black or mulatto and 71% as White. Educational attainment was stratified at the median number of school years. Compared with White women, non-White women had higher blood pressures (3.0/1.7, systolic blood pressure/diastolic blood pressure) and a higher prevalence of hypertension (24%, 95% confidence interval: 20, 28 vs. 15%, 95% confidence interval: 12, 18). Among men, no differences in blood pressure were observed by ethnicity. Men with a lower level of education had a 14% lower risk of hypertension compared with men above the median. However, women with a lower level of education had a 24% increase in risk. The effect of education was equally strong among Whites alone and when occupation was used for stratification. No variation was observed for body mass index or self-reported health behaviors by ethnicity or education. The narrower ethnic gradient in hypertension prevalence than seen in North America and the gender-specific social status effect, in the context of relatively equal living conditions, suggest that the influence of psychosocial stressors may be specific to cultural contexts.