期刊
JOURNAL OF HYPERTENSION
卷 29, 期 6, 页码 1101-1108出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/HJH.0b013e328346a599
关键词
cardiovascular disease; epidemiology; hypertension; population science; risk factors
资金
- Forest Research Laboratories
- Forest Research Laboratories through the University of California
- Novartis Pharmaceuticals
- Bristol Myers-Squibb
Objectives To determine the features of isolated systolic hypertension (ISH), the most common hypertensive subtype in persons at least age 50, associated with greater cardiovascular disease (CVD) risk when accompanied by low diastolic blood pressure (DBP). Design Data were obtained from adult hypertensives at least age 18 in the National Health Nutrition Examination Survey (NHANES) 1999-2006 (n=19 808, projected to 199.3 million). Method ISH were categorized by low DBP (<70mmHg) vs. higher DBP (>= 70-89 mmHg), treatment status, age, sex, ethnicity, cardiometabolic risk factors, and comorbidities. Results A 58.6% of all untreated US hypertensives had ISH (mean blood pressure 154.3/73.8 mmHg). Untreated and treated persons with ISH and DBP less than 70mmHg represented 30 and 35%, respectively, of the ISH population and had almost twice the prevalence of diabetes and CVD, but a lower prevalence of the metabolic syndrome (P<0.05 to P<0.01). There was a three-fold greater prevalence of CVD from the highest to the lowest DBP strata in untreated ISH (P<0.01). Logistic regression showed that age, female sex, and diabetes, but not treatment status, were independently associated with lower DBP (all P<0.01). Of those persons with ISH and DBP less than 70 mmHg, 45% remain untreated. Conclusion Older persons with untreated ISH and DBP less than 70mmHg, comprising almost one-third of the untreated ISH population, had greater prevalence of diabetes and CVD than persons with ISH in association with DBP 70-89mmHg. Intensified efforts to identify and adequately treat these individuals are needed to reduce their associated CVD risk. J Hypertens 29: 1101-1108 (C) 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins.
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