title: [Cluster analysis on the blood pressure control rate and related factors of hypertensive outpatients in China].
abstract: OBJECTIVE
  To explore the blood pressure (BP) control rate and related factors in different parts of China.
  
  
  METHODS
  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.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  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.
authors: Institute of Clinical Epidemiology, Key Laboratory of Public Health Safety (Ministry of Education), School of Public Health, Fudan University, Shanghai 200032, China.
authors: Li
authors: L
authors: Sun
authors: Jiwei
authors: J
authors: Wang
authors: Email: jmy@fudan.edu.
authors: Jinming
authors: J
authors: Yu
mesh_terms: D000328:Adult; D000959:Antihypertensive Agents; D001794:Blood Pressure; D015992:Body Mass Index; D002681:China / Q000453:epidemiology; D016000:Cluster Analysis; D003327:Coronary Disease / Q000150:complications* / Q000453:epidemiology; D003430:Cross-Sectional Studies; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000188:drug therapy*; D010045:Outpatients; D015995:Prevalence; D012307:Risk Factors; D011795:Surveys and Questionnaires; D055105:Waist Circumference
chemical_list: D000959:Antihypertensive Agents