东莞市横沥镇35岁及以上居民肥胖流行情况及其与高血压的关系

Epidemic status of obesity and its relationship with hypertension among residents over the age of 35 in Hengli town of Dongguan City

目的 调查东莞市横沥镇≥35岁居民肥胖流行情况及其与高血压的关系.方法 2011年7月～2012年4月采用整群抽样的方法,对东莞市横沥镇≥35岁的10 036户籍居民进行问卷调查和身高、体重、腰围、臀围、血压测量.结果 完成问卷调查、身体测量共9 880人.超重、肥胖、中心性肥胖患病率各为37.5％、16.5％、51.8％.男性超重患病率较女性高,差异有统计学意义（x2=26.98,P＜0.001）,男女性肥胖及中心性肥胖患病率基本持平,差异均无统计学意义（均有P＞0.05）.高血压患病率为34.6％.超重、肥胖、中心性肥胖人群中的收缩压/舒张压水平各为133.7/77.5 mmHg、138.5/80.4 mmHg、136.2/78.3 mmHg；高血压患病率各为38.4％、50.8％、45.2％.不同体质指数（body mass index,BMI）、腰围的收缩压/舒张压水平及高血压患病率差异均有统计学意义（均有P＜0.05）.BMI超重、肥胖高血压的患病率分别是BMI正常的1.78倍（95％CI：1.56～2.02）、3.20倍（95％ CI：2.71～3.80）,中心性肥胖高血压患病率是腰围正常的1.54倍（95％ CI：1.36 ～ 1.75）.结论 东莞市横沥镇≥35岁居民超重、肥胖、中心性肥胖患病率较高,流行以中心性肥胖为主；BMI及腰围均是高血压的独立危险因素,BMI与血压关联较腰围大.

Objective To study the epidemic status of obesity and its relationship with hypertension among resi- dents above 35 years old in Hengli town of Dongguan. Methods From July 2011 to Apirl 2012, a cluster sampling method was used in this survey. Questionnaire survey and body measurement （ height, weight, waist circumference, hip circumference, and blood pressure） were conducted among 10 036 residents above the age of 35 in Hengli town, Dongguan. Results 9 880 individuals completed the quesionnaire and body measurement. The prevalence of excess weight, obesity and central obesity was 37.5% , 16. 5% and 51.8% , respectively. Between males and females, the prevalence of obesity（P = 0. 856） and central obesity （P =0. 505）. The prevalence of hypertension was 34. 6%. The levels of SBP/DBP in individu- als with excess weight, obesity and central obesity were 133.7/77.5 mmHg, 138.5/80.4 mmHg and 136.2/78.3 mmHg respectively. In the same papulation, the prevalence of hypertension were 38.4% , 50. 8% and 45.2% respectively. Both the levels of SBP/DBP and prevalence of hypertension in different BMI and waist circumference bad statistically significant differences（ all P 〈 0.05 ）. The prevalence of hypertension in those with excess weight and obesity were 1.78 times （95% CI：I. 56-2. 02）and 3.20 times （95% CI：2. 71-3.80） higher than those with 18.5 ≤BMI 〈24. The hypertensive prevalence in those with central obesity was 1.54 times higher than those with normal waist circumference （95% CI： 1.36- 1.75 ）. Conclusions The prevalence of excess weight, obesity and central obesity among residents above 35 years of age in Hengli town of Dongguan are high, and the central obesity is predominant. Body mass index and waist circumference are independent risk factors for hypertension. The relationship between BMI and hypertension is closer than that between waist circumference and hypertension.