辽宁西部地区农村人群体质指数和腰围对血压的影响

目的 探讨辽宁西部地区农村人群体质指数(BMI)和腰围(WC)对血压均值及高血压患病率的影响.方法 采用分层整群随机抽样的方法,于2004-2006年对辽宁省阜新县35～74岁常住居民43 692人进行流行病学调查.采用Epidata3.1软件建立数据库,使用SPSS 12.0统计软件包对数据进行统计分析.结果 共调查43 692人,男性21 680人(49.6%),女性22 012人(50.4%).平均BMI为(23.31±3.08)kg/m2,平均WC为(80.87±9.40)cm.不论男性还是女性以20 kg/m2起始,收缩压随着BMI的增加而逐渐增加;舒张压随BMI的增加而逐渐升高.多因素logistic回归分析显示,男性中以BMI<18 kg/m2组为对照,其他各组患病危险OR值均有显著统计学意义,28～30 kg/m2组OR及95%CI为6.285(4.612～8.566),在20～30 kg/m2范围内,OR值随着等级的增高而逐渐增高;女性从20～22 kg/m2组起始OR值随着BMI等级的增高而逐渐增高,在≥30kg/m2组OR及95%CI为7.764(6.009～10.032).男性和女性收缩压和舒张压及高血压患病率均随着WC的增加而逐渐增加(P<0.001).不论是在男性还是女性,当BMI<24 kg/m2,或WC男性<85cm、女性WC<80 cm时,其平均血压水平、高血压患病率最低;当BMI达到超重或肥胖标准时或WC超标时,血压均值和高血压患病率均明显增高;调整年龄等危险因素后,男性超重和肥胖对高血压的患病危险OR分别为1.704(1.592～1.825)及3.710(3.148～4.371),女性为1.527(1.428～1.632)和3.014(2.668～3.405);WC超标时,男女性高血压患病危险OR及95%CI分别为1.231(1.153～1.314)和1.353(1.269～1.442).结论 BMI和WC均与高血压患病明显相关.有效预防和控制超重和肥胖等高血压发病危险因素,是我国目前急需解决的公共卫生问题.

Correlation between body mass index,waist drcumference and blood pressure in rural residents from west part of Liaoning Province

Objective This study observed the association between body mass index(BMI),waist circumference(WC)and blood pressure level in ratal residents from west Liarming province.Methotis This epidemiological study using stratified cluster random sampling was conducted from 2004 to 2006 in Fuxin County,Liaoning Province,43 692 rural residents(21 680 males)aged 35-74 years old[(49.8 ±10.2)years ] were surveyed.Database was established with the help of Epidata 3.1 software.Results In total 43 692 persons were surveyed,including 21 680 male(49.6%)and 22 012 female(50.4%).The average BMI and WC was(23.31±3.08)kg/m2and(80.87 ±9.40)cm,respectively.No matter male or female,SBP started from 20 kg/m2,increased with the increase of BMI;DBP increased gradually with the increase of BMI:the prevalence of hypertension were significant differences among different BMI groups (P<0.001).Multiple logistic regression show that in male,using the group with BMI,<18 kg/m2 as control,28 -30 kg/m2 group OR and 95% CI was 6. 285(4. 612 -8. 566) ; in female, when BMI >22 kg/m2 OR increased with the increasing of BMI. In male and female, both SBP and DBP, also the prevalence rate of hypertension increased gradually with the increase of WC (P <0. 001 ). No matter in male or female,when BMI < 24 kg/m2, and WC male < 85 cm, female WC < 80 cm, the average blood pressure levels and prevalence of hypertension are the lowest; after adjusting for age and other risk factors, the prevalence rate of overweight and obesity for male with hypertension OR are 1.704 ( 1. 592 - 1. 825) and 3. 710 (3. 148 -4. 371 ), respectively, for female is 1. 527 ( 1. 428 - 1. 632 ) and 3.014 ( 2. 668 - 3. 405 ), respectively.When the WC is higher than the standard, male and female hypertension risk OR and 95% CI are 1. 231( 1. 153 - 1. 314) and 1. 353 ( 1. 269 - 1. 442), respectively. Conclusion Both BMI and WC are risk factors of hypertension.