To determine the prevalence of hypertension and pre-hypertension and its determinants in the 40–64 year old population of Shahroud in the north of Iran.Methods
The blood pressure of 5,190 of the 40–64 year old people participating in the first phase of Shahroud Eye Cohort Study was measured using the standard method. Sampling was done in 2009 using a random cluster approach. The prevalence of hypertension and pre-hypertension was determined by age and sex, and we used a multi-nominal logistic regression model to calculate the odds ratio (OR).Results
The prevalence of pre-hypertension was 37.2 % in men and 30.9 % in women, and the prevalence of hypertension was respectively 37.1 % and 39.0 %. In both sexes, there was an increase in the prevalence of hypertension and a decrease in the prevalence of pre-hypertension with age. Older age, male sex, higher body mass index, blood glucose higher than 140 mg/dl were found associated with hypertension and pre-hypertension. Also, diabetes increases the odds of hypertension (OR = 1.4) and a history of smoking was correlated with a decreased odds of having hypertension and pre-hypertension.Conclusion
According to the criteria of Joint National Committee on Prevention, Detection, Evaluation and Treatment of High Blood Pressure, the prevalence of hypertension and pre-hypertension was high in the studied population, and considering the epidemiologic transition of diseases in Iran, it can be concluded that a high percentage of the population are at risk of cardiovascular diseases.