Socioeconomic characteristics and controlled hypertension: Evidence from Isfahan Healthy Heart Program

BACKGROUND: Hypertension is a major risk factor for cardiovascular diseases. It affects approximately ۱۸.۰% of Iranian adults. This study aimed to estimate age-adjusted prevalence of hypertension and its control among Iranian persons older ۱۹ 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 ≥ ۱۴۰ mmHg, diastolic blood pressure ≥ ۹۰ mmHg, or taking antihypertensive medications. Controlled hypertension was considered as systolic blood pressure < ۱۴۰ mmHg and diastolic blood pressure < ۹۰ mmHg among hypertensive subjects. RESULTS: The prevalence of hypertension and controlled hypertension was ۱۸.۹% and ۲۰.۹%, respectively. We found significant relationships between hypertension and marital status, education, and income. At age ≥ ۶۵ years old, odds ratio (OR) was ۱۹.۰۹ [۹۵% confidence interval (CI): ۱۵.۰۱-۲۴.۲۸] for hypertension. Middle family income (OR: ۰.۷۱; ۹۵% CI: ۰.۵۸-۰.۸۷) and education level of ۶-۱۲ years (OR: ۰.۲۹; ۹۵% CI: ۰.۲۵-۰.۳۵) were significantly associated with increased risk of hypertension (P = ۰.۰۰۱). Among subjects aging ۶۵ years old or higher, the OR of controlled hypertension was ۲.۶۴ (۹۵% CI: ۱.۶۱-۴.۳۳). Married subjects had a higher OR for controlled hypertension (OR: ۲.۱۹; ۹۵% CI: ۱.۳۶-۳.۵۲). Obesity had no significant relationships with controlled hypertension. CONCLUSION: 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.   Keywords: Socioeconomic Factor, High Blood Pressure, Control