Abstract 1071: Hypertension Awareness, Treatment and Control in Latin America
Background: Most hypertensive patients in all countries have uncontrolled blood pressure (BP). Regional data on hypertension awareness, treatment and control (ATC) are needed for implementing effective prevention programs. Unfortunately, available data from Latin America (LA) are of limited use for this purpose.
Methods: We studied 9,993 hypertensives (systolic BP≥140 mmHg or diastolic BP ≥90 mmHg or receiving drug treatment; overall prevalence: 22.0%) from the Latin American Consortium of Studies in Obesity (LASO, 1998 –2005). We estimated the prevalences of hypertension ATC post-stratifying by the age and gender distribution of the whole population in the countries included in LASO. Multiple weighted logistic regression was used to estimate the effect of age, gender, education, and obesity (BMI≥30 kg/m2) on ATC rates, additionally adjusting by study.
Results: Overall 55.7% (95% CI: 53.0, 58.5) were aware, 40.8% (95% CI: 37.9, 43.7) were receiving treatment, but only 18.3% (95% CI: 15.7, 21.2) were controlled (systolic/diastolic BP<140/90 mm Hg). In a multivariate analysis, ATC rates in men were significantly lower than those in women (Table 1⇓). Although treatment rates increased, control rates decreased significantly with age (about 80% in people≥70 years). Hypertension awareness and treatment were significantly higher in literate as compare to illiterate individuals (39% and 24%, respectively), but control rates were not. Finally, obese patients were 39% more likely to be aware and 38% more likely to be treated but they were 27% less likely to be controlled.
Conclusions: The prevalences of hypertension ATC in LA are lower than those in developed countries. The worst rates of BP control were observed in those groups at highest risk of hypertension-related morbidity and mortality: men, as well as older and obese individuals. Our findings should be taken into account in the design of cardiovascular disease prevention programs in the region.