title: Socioeconomic characteristics and controlled hypertension: Evidence from Isfahan Healthy Heart Program.
abstract: BACKGROUND
  Hypertension is a major risk factor for cardiovascular diseases. It affects approximately 18.0% of Iranian adults. This study aimed to estimate age-adjusted prevalence of hypertension and its control among Iranian persons older 19 years of age. It also tried to find and socioeconomic factors associated with hypertension control in Iranian population.
  
  
  METHODS
  In Isfahan Healthy Heart Program (IHHP) subjects were selected by multistage random sampling. The participants completed questionnaires containing demographic information, lifestyle habits, medical history, and consumption of relevant medications, especially antihypertensive agents. Income, marital status, and educational level were considered as socioeconomic factors. Hypertension was defined as systolic blood pressure ≥ 140 mmHg, diastolic blood pressure ≥ 90 mmHg, or taking antihypertensive medications. Controlled hypertension was considered as systolic blood pressure < 140 mmHg and diastolic blood pressure < 90 mmHg among hypertensive subjects.
  
  
  RESULTS
  The prevalence of hypertension and controlled hypertension was 18.9% and 20.9%, respectively. We found significant relationships between hypertension and marital status, education, and income. At age ≥ 65 years old, odds ratio (OR) was 19.09 [95% confidence interval (CI): 15.01-24.28] for hypertension. Middle family income (OR: 0.71; 95% CI: 0.58-0.87) and education level of 6-12 years (OR: 0.29; 95% CI: 0.25-0.35) were significantly associated with increased risk of hypertension (P = 0.001). Among subjects aging 65 years old or higher, the OR of controlled hypertension was 2.64 (95% CI: 1.61-4.33). Married subjects had a higher OR for controlled hypertension (OR: 2.19; 95% CI: 1.36-3.52). Obesity had no significant relationships with controlled hypertension.
  
  
  CONCLUSIONS
  The IHHP data showed significant relationships between some socioeconomic factors and controlled hypertension. Therefore, as current control rates for hypertension in Iran are clearly unacceptable, we recommend preventive measures to control hypertension in all social strata of the Iranian population.
authors.affiliation: Researcher, Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences.
authors.forename: Mojgan
authors.initials: M
authors.lastname: Gharipour
authors.forename: Alireza
authors.initials: A
authors.lastname: Khosravi
authors.forename: Masoumeh
authors.initials: M
authors.lastname: Sadeghi
authors.forename: Hamidreza
authors.initials: H
authors.lastname: Roohafza
authors.forename: Mohammad
authors.initials: M
authors.lastname: Hashemi
authors.forename: Nizal
authors.initials: N
authors.lastname: Sarrafzadegan
keywords: Control; High Blood Pressure; Socioeconomic Factor