Cluster analysis on the blood pressure control rate and related factors of hypertensive outpatients in China / 中华心血管病杂志

ABSTRACT

<p><b>OBJECTIVE</b>To explore the blood pressure (BP) control rate and related factors in different parts of China.</p><p><b>METHODS</b>This cross-sectional survey was performed between March and May 2011 in 132 tertiary or secondary hospitals from 31 cities across China. Five consecutive hypertensive patients consulted to individual physician in these hospitals were included and a total of 4 110 patients aged ≥ 18 years were included, and 3 682 patients finished the follow-up protocol. All objects underwent questionnaire survey and physical examination. Cities were divided into 3 categories.</p><p><b>RESULTS</b>Among included hypertensive outpatients, the prevalence of coronary heart disease was the highest (37.4%, 1 368/3 662) comorbidity. The most commonly used antihypertensive medication was calcium channel blocker (51.3%, 1 861/3 628). Blood control rate was the highest in city category II(37.0%) and the lowest in city category I (9.1%). Accordingly, body mass index (BMI, (25.7 ± 0.6) kg/m(2)) and waist circumference ( (90.6 ± 3.1 ) cm) were the largest and the prevalence of coronary heart disease (60.8%) and stroke (19.0%) were the highest in hypertensive outpatients from city categoryI.</p><p><b>CONCLUSION</b>Blood pressure control rate varies among various cities in China. High BMI and co-morbidities of coronary heart disease and stroke are related to poor blood pressure control rate.</p>