Study of relationships between smoking and hypertension.

Objective To investigate the relationships between smoking and systolic blood pressure(SBP) and diastolic blood pressure(DBP).Methods 4 480 people of 14 survey areas were selected with a multi-stage random clustering sampling and KISH table.4 318(96.38%) participants completed the questionnaire,which included the variables of sex,age,smoking,liquor drinking,eating habit,physical activity,etc.All subjects were measured for height,body weight,waist circumference,blood pressure and other biomarkers.Results The average SBP and DBP of men were significant higher than that of women(P0.05).The blood pressure was significantly higher in the participants of smoking than that in participants of non-smoking(P0.05).Pearson correlation analysis indicated the significant relationships between the amount of tobacco use and SBP(Pearson coefficient=0.067,P=0.004),DBP(Pearson coefficient=0.075,P=0.001) and the rank of blood pressure(Pearson coefficient=0.053,P=0.022).A multi-logistic analysis showed that there was a significant association of hypertension and smoking adjusting for age,sex,BMI,waist circumference,etc(OR=1.196,95% CI=1.056-1.355).Conclusion Smoking increased the risk of hypertension.