Abstract:

BACKGROUND: Pre-hypertension investigation plays an important role in preventing, reducing and delaying hypertension. However, there are few reports concerning the pre-hypertension in national large-scale investigations.
OBJECTIVE: To compare the prevalence and risk factors of pre-hypertension in urban and rural population of Beijing, to explore the effects of urbanization on the pre-hypertension, in addition, to provide guidance for disease prevention and control. 
METHODS: A cluster sampling was used to establish a study population of inhabitants aged 40-65. The definition of pre-hypertension was determined by National Revision Committee of the Guidelines of Hypertension Prevention and Control in 2005. Logistic regression model was used to find the risk factors of pre-hypertension.
RESULTS AND CONCLUSION: A cohort of 3 268 middle-aged participants were enrolled in the investigation. The prevalence of hypertension in urban was lower than in rural (P < 0.05). Multivariate logistic analysis revealed that, in males, the 0.1 unit increase in waist-hip ratio led to 1.411 increase in risk factor (95% CI: 1.031-1.931), and the current drinking people suffered 0.648 risk factors than that never drinking (95% CI: 0.437-0.961). In females, the 0.1 unit increase in waist-hip ratio resulted in 1.489 increase in risk factor (95% CI: 1.006-2.203), and 1 unit increase in triglyceride caused 1.194 increase in risk factor (95% CI: 1.000-1.426). Accordingly, obesity is a major risk factor for pre-hypertension.