上海市南汇区中年居民BMI与血压水平的相关性研究

目的探讨体质量指数（body mass index,BMI）与人群血压水平的相关性,为心脑血管疾病危险因素控制提供参考。方法选择上海市南汇区某社区40～64岁人群共515名,进行问卷测量血压、身高、体质量等。按BMI值将其分为正常体质量组、超重组及肥胖组,对3组的血压及BMI分析比较,并对BMI与血压进行相关分析。结果高血压组的平均BMI及超重率与肥胖率高于对照组;女性BMI值对高血压的影响更明显（P〈0.01）。除男性收缩压外,不同BMI者,收缩压和舒张压的水平有显著性差异（P〈0.01）。女性收缩压与BMI的相关系数为0.221（P〈0.01）。男女舒张压与BMI相关性分别为r=0.141（P〈0.05）及r=0.180（P〈0.05）。结论40～46岁社区人群BMI对高血压及血压水平均有显著影响,BMI与血压的相关性女性高于男性,BMI与男性舒张压的相关性高于收缩压。

Relationship between BMI and BP in middle-aged people in Nanhui district of Shanghai

Objective To study the relationship between body mass index（BMI） and blood pressure（BP） of the people aged 40～64 years old to provide reference for controlling cerebral artery disease risk factor.Methods Questionnaire,blood pressure,height and weight were measured in 515 people aged 40～64 years old in Nanhui district of Shanghai.According to BMI,they were divided into three groups： normal,overweight and obesity.Correlative analysis between BMI and BP was done.Results The rate of obesity,overweight and the average BMI were all higher in the group of hypertension than those in control one.BMI of female has more significant influence on BP（P〈0.01）.With the increased BMI,diastolic blood pressure（DBP） and systolic blood pressure（SBP）,except for SBP in group of male,were significantly different among three groups（P〈0.01）.Relationship between BMI and BP was positively correlative with SBP（r=0.221,P〈0.01） and DBP（r=0.180,P〈0.05） of females,and DBP of male（r=0.141,P〈0.05）.Conclusion Relationship between BMI and BP is significantly correlative in the people aged 40～64.And the correlation of BMI with BP of female was higher than that of male while the correlation of BMI with DBP is higher than that of SBP in male.