摘要
目的 分析出生于不同年代的20岁及以上中国居民处于相似年龄时超重/肥胖率、中心性肥胖率的差异.方法 本文利用"中国健康与营养调查"数据,选取1991年、2000年、2009年、2018年调查中20岁及以上健康成年居民作为研究对象,共纳入38 908人.基于调查时的年龄,将研究对象划分为20～29、30～39、40～49、50～59、60～69和70岁及以上组,此时各年龄组分别对应10代、20代、30代、40代、50代、60代、70代、80代和90代共9个年代出生人群.按性别分层,采用卡方检验及非参数检验比较不同年代出生人群在相似年龄段时体质指数、超重/肥胖率、腰围以及中心性肥胖率的代际差异.结果 (1)不同年代出生居民处于相似年龄时,其体质指数、超重/肥胖率、腰围及中心性肥胖率均存在不利代际差异(P＜0.0001).年轻代发生超重/肥胖和中心性肥胖的年龄更早.(2)超重/肥胖率、中心性肥胖率代际变化存在性别差异.最年长两代女性之间超重/肥胖以及中心性肥胖存在不利代际差异(P＜0.0001),最大差异分别为15.5％和8.0％,相邻两代男性之间超重/肥胖及最年轻两代男性之间中心性肥胖均存在不利代际差异(P＜0.0001),最大差异分别为19.5％和17.0％.结论 中国成年居民超重/肥胖率及中心性肥胖率存在不利代际差异,与年长代相比年轻代超重/肥胖率及中心性肥胖率更高,年轻代发生超重/肥胖的年龄更早.
Abstract
OBJECTIVE To analyze the generational differences in overweight/obesity prevalence and central obesity prevalence among Chinese adult residents aged 20 years and above at the same ages.METHODS A total of 38 908 healthy adult residents aged 20 years and above from"the China Health and Nutrition Survey"in 1991,2000,2009,and 2018 were selected for this study.Based on age at the time of the survey,the study subjects were divided into 6 age groups(20-29,30-39,40-49,50-59,60-69,and ≥70 years old)corresponding to 9 different generations of births in 10,20,30,40,50,60,70,80,and 90 generations,respectively.All analyses were stratified by sex.A chi-square test was used to compare generational differences in overweight/obesity and central obesity at similar ages in populations born in different generations.Non-parametric tests were used to compare generational differences in BMI and waist circumference.RESULTS(1)Body mass index(BMI),overweight/obesity rate,waist circumference,and central obesity rate showed unfavorable generational differences(P＜0.0001)among different generations of residents at similar ages.BMI,overweight/obesity prevalence,waist circumference,and central obesity prevalence were higher in the younger generation.Overweight/obesity and central obesity.occurred at an earlier age in the younger generation.(2)Generational differences in overweight/obesity rates and central obesity rates followed gender specificity.Unfavorable generational differences(P＜0.0001)occurred in overweight/obesity as well as central obesity between the two oldest generations of females,with maximum differences of 15.5％and 8.0％.Unfavorable generational differences(P＜0.0001)occurred in overweight/obesity between the two adjacent generations of men and in central obesity between the two youngest generations of men,with maximum differences of 19.5％and 17.0％.CONCLUSION The prevalence of overweight/obesity and central obesity among Chinese adults showed unfavorable generational differences.The prevalence of overweight/obesity and central obesity was higher in the younger generation.The younger generation develops overweight/obesity at an earlier age.
基金项目
中国健康与营养调查项目(R01-HD30880)
中国健康与营养调查项目(DK056350)
中国健康与营养调查项目(R01-HD38700)
国家财政项目(13103110700015005)
NETL
NSTL
维普
万方数据