Objectives: In a previous study conducted in Kocaeli, Turkey, ten years before, a very low rate of hypertension control (6.2%) was reported. This hypertension survey was conducted to determine whether the treatment and control rates of hypertension improved in the same region.
Study design: Using a stratified sampling method, 1222 subjects (559 males, 663 females, mean age 44.8+/-13.6 years) living in Kocaeli, aged 25 or over, were included. After administration of a standardized questionnaire, blood pressure was measured in the sitting position from both arms after at least five minutes of resting. The measurement was repeated after 10 minutes on the arm with the higher initial reading. Hypertension was defined as the presence of a mean systolic blood pressure = or >140 mmHg and/or a mean diastolic blood pressure = or >90 mmHg, or a previous diagnosis of hypertension and/or use of antihypertensive drugs.
Results: The prevalence of hypertension was 33.6% (37.1% in women, and 29.5% in men, p<0.001). Of the hypertensive subjects, 59.3% were aware of their condition. Hypertension was controlled in 8.7% of the subjects (systolic blood pressure <140 mmHg and diastolic blood pressure <90 mmHg).
Conclusion: Our results showed that about one-third of the adult population in Kocaeli had hypertension, with low rates of control and awareness. Since the previous survey, there has been a small improvement in hypertension control rate, but uncontrolled hypertension is still remarkably high in this geographical region. These findings are consistent with the recent Turkish Hypertension Prevalence study (PatenT) reporting a control rate of 8.1%.