توزيع فشارخون در جمعيت بزرگسالان تهراني : مطالعه قند و ليپيد تهران

Distribution of blood pressure and prevalence of hypertension in Tehran adult population: Tehran Lipid and Glucose Study

Introduction: The purpose of this study was to estimate the current prevalence and distribution of hypertension in Tehran adult population. Materials and Methods: Data were collected for 3343 men and 5148 women aged 20-69 years in Tehran Lipid and Glucose Study (TLGS), which is a cross-sectional phase of a large epidemiological study, first established in 1999. The study used mean of two separate BP measurements in each Individual. Results: Twenty-two percent (23% of women vs 20% of men, P=0.01) had hypertension according to "MC-VII" and "WHO-ISH" criteria. The average SBP, DBP, and pulse pressures of hypertensive participants were 31, 16, and 15 mmHg higher than the corresponding values for normotensives. Thirty-six percent of participants with JNCVII-based hypertension were using antihypertensive medication (23% of men and 43% of women). Of these, 40% (45% of men and 39% of women) had normal BP. Hypertension awareness was 50% in these participants (57% in men vs 37% in women, P<0.001). Data for 3179 men and 4646 women aged 20-69 years with no antlhypertensive treatment were used for analysis of BP measures. Of these, 15% (16% of men and 14% of women, P=0.006) had high BP levels according to JNC-VII. Only 49% (47% of men and 51% of women) had normal BP and prevalence of pre-hypertension was 36% (37% in men and 35% in women). Mean SBP was 117.8±16.6 and 116.4±16.4 mmHg in men and women, respectively (P<0.001). The equivalent values were 77.4±10.7 and 77.3±9.9 mmHg for DBP (P=0.5) and 40.4±12 and 39.1±11.7 mmHg for pulse pressure (P<0.001). Conclusion: A relatively high prevalence of JNC-VII defined hypertension was found in TLGS adult population with 50% undiagnosed and 60% uncontrolled hypertension. These findings emphasize further considerations for detection and better management of hypertension in urban population of Tehran.