Prevalence and risk factors of primary hypertension in the elderly in shanghai community

CHEN Yang; ZHANG Wei; WANG Jiao-feng; TAN Zhong-ru; JIAO Qing-ping; GUO Xin-gui; ZHANG Yu

doi:10.3760/cma.j.issn.1673-4777.2013.06.020

Abstract：Objective To investigate prevalence and risk factors of primary hypertension in an old population in Shanghai community.Methods Participants from four communities of Changning district were surveyed by randomly cluster sampling.The data of 8767 persons (male 3824,female 4943) aged 65 years and older were obtained and analyzed.Results ①The rates of prevalence,awareness and treatment were 61.5％ (5391/8767),87.4％ (4712/5391) and 49.9％ (2689/5391).The rates of awareness were higher in females than in males (88.9％ vs 85.5％,P ＜ 0.05).②Multiple logistic regression analysis showed that age,body mass index (BMI),salt intake,hypertensive family history and history of hyperlipidemia were significantly related to hypertension (P ＜0.001).The odds ratios (95％ CI) of age,BMI,hypertensive family history and history of hypedipidemia were1.044(1.036-1.052),1.115(1.099-1.132),3.064(2.644-3.550) and 1.580(1.260-1.980),respectively.Compared with the group of 6 g/d to 12 g/d salt intake,the odds ratios (95％ CI) of group over 12 g/d were 1.433 (1.284-1.600) and 1.461 (1.195-1.786).Conclusions The prevalence rate of hypertension is high in the old population of Shanghai community.The rates of awareness of hypertension were higher in females than in males.The main risk factors of hypertension include age(≥65 years),BMI(24 kg/m2),salt intake (≥6 g/day),hypertensive family history and history of hyperlipidemia.