北京地区2740人1992至2002年腹部肥胖变化

Changes of abdominal adiposity in 2740 subjects of Beijing from 1992 to 2002

目的了解北京地区2740人1992至2002年10年间腰围平均水平和腹部肥胖患病率的变化情况。方法1992年在北京大学社区和首钢地区35—64岁人群中进行基线危险因素调查并建立了心血管病研究队列。2002年对参加第一次危险因素调查的人（45～74岁）采用相同的方法进行了第二次危险因素调查，对两次调查资料完整的2740人的腰围水平进行分析。结果男性腰围平均水平从83．7cm增加到87．9cm，增加了5．0％，各年龄组增加幅度相似；女性腰围平均水平从76．5cm增加到82．3cm，增加了7．5％。10年问女性腰围平均水平增加幅度高于男性。男性腹部肥胖患病率从21．2％增加到36．7％，其中年轻组（35～44岁）增加最多；女性腹部肥胖患病率从13．6％增加到33．9％，其中35～44岁组和45～54岁组增加幅度最多。基线腰围水平在最低四分位和最高四分位水平者，10年后近70％仍维持在同样的档次。结论10年间北京地区人群腰围的平均水平和腹部肥胖的患病率均明显增加，以35～44岁年龄组人群增加最为明显。

Objective To explore the changes of individual waist circumference and the prevalence of abdominal adiposity in Beijing from 1992 to 2002. Methods In this prospective study, the baseline survey was carried out in 4154 subjects aged 35-44 in 1992 in Beijing. These subjects were called back and re-examined in 2002. Data were analyzed for 2740 subjects with complete records of the two surveys. Results The mean level of waist circumference increased from 83.7 cm to 87.9 cm in males, and from 76. 5 cm to 82.3 cm in females. A more significant increase was observed in female than in males. The prevalence of abdominal adiposity increased from 21.2% to 36. 7% in males, and from 13.6% to 33.9% in female. The greatest increase occurred in subjects of ages 35 to 44 years rather than in the elders. Seventy percent of individuals with waist circumference in the lowest or highest quartile at baseline maintained the same rank after 10 years. Conclusion Both the mean level of waist circumference and the prevalence of abdominal adiposity increased significantly in a period of ten years in Beijing area, with the most significant increase observed in the younger age group.