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Arquivos Brasileiros de CardiologiaResumo das Próximas PublicaçõesAno 2001
Hypertension and Clustering of Cardiovascular Risk Factors in a Community in Southeast Brazil – The Bambuí Health and Ageing Study
Sandhi Maria Barreto, Valéria Maria Azeredo Passos, Josélia Oliveira Araújo Firmo, Henrique Leonardo Guerra, Pedro Guatimosim Vidigal, Maria Fernanda Furtado de Lima-Costa
Objective - The baseline data of a population-based prospective study were analysed to: a) determine the prevalence of hypertension; b) investigate the clustering of other cardiovascular risk factors in hypertensive individuals, and c) verify whether older adults (>60 years) differed from younger adults (18-59 years) in the pattern of clustering.
Methods - The data comprised a representative sample of adults (18-59 years) and the entire population aged >60 years of Bambuí, Brazil. Multiple logistic regression was used to investigate the independent association between hypertension (blood pressure>140/90mmHg, or the use of antihypertensive medication, or both) and selected factors.
Results - A total of 820 younger adults (82.5%) and 1494 older adults (85.9%) participated in this study. The overall prevalence of hypertension in this community was 24.8% (SE=1.4%), being higher in women (26.9± 1.5%) than in men (22.0± 1.7%) (p=0.033). Hypertension was positively and significantly associated with physical inactivity, overweight (BMI³ 25kg/m2), hypercholesterolemia (³ 240mg/dL), hyperglycemia (³ 126mg/dL), and hypertriglyceridemia (³ 150mg/dL). Only 7% of hypertensive individuals were not simultaneously exposed to these risk factors. The coexistence of hypertension with 4 or more of these risk factors occurred 6 times more than expected by chance, after adjusting for age and sex (OR=6.3; 95%CI: 3.4-11.9). The pattern of risk factor clustering in hypertensive individuals differed significantly with age, hypercholesterolemia, hyperglycemia, and inactivity being more common in older adults and overweight being more common in younger adults.
Conclusion - The high prevalence of other cardiovascular risk factors in hypertensive individuals in this community has important therapeutic and public health implications. Our results reinforce the need to increase detection and treatment of hypertension and to approach patients’ global risk profiles.
Key words: hypertension, cardiovascular risk factors, prevalence
Faculdade de Medicina, Universidade Federal de Minas Gerais, Centro de Pesquisas Rachou, Fundação Oswaldo Cruz – Belo Horizonte Mailing address: Sandhi Maria Barreto - Laboratório de
Epidemiologia e Antropologia Médica, Centro de Pesquisas René Rachou
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