Xu Weili, Zhang Hua, Paillard-Borg Stephanie, Zhu Hong, Qi Xiuying, Rizzuto Debora
Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.
Obes Facts. 2016;9(1):17-28. doi: 10.1159/000443003. Epub 2016 Jan 9.
The role of different body fat indicators and age in assessing the prevalence of obesity is unclear. We aimed to examine to what extent different body fat indicators including BMI, waist circumference (WC) and waist-to-hip ratio (WHR) affect the prevalence of overweight and obesity among Chinese adults taking age into account.
This population-based cross-sectional study included a random sample of 7,603 adults aged 20-79 years across entire Tianjin, China. BMI, WC, and WHR were used to define overweight and obesity following standard criteria. Prevalence rates were calculated and standardized using local age- and gender-specific census data. Logistic regression was used in data analysis.
Using the combination of BMI, WC, and WHR, the prevalence of overweight and obesity was 69.8%, and increased with age till the age of 60 and a decline thereafter. The prevalence of overweight assessed by BMI was higher than that assessed by WC and WHR, while the prevalence of obesity defined by BMI was much lower than that defined by WC or WHR.
The prevalence of overweight and obesity is about 70% among Chinese adults. Adiposity indicators and age play an important role in the prevalence of overweight and obesity.
不同体脂指标和年龄在评估肥胖患病率中的作用尚不清楚。我们旨在探讨包括体重指数（BMI）、腰围（WC）和腰臀比（WHR）在内的不同体脂指标在考虑年龄因素的情况下，对中国成年人超重和肥胖患病率的影响程度。
这项基于人群的横断面研究随机抽取了中国天津市7603名年龄在20至79岁之间的成年人。按照标准标准，使用BMI、WC和WHR来定义超重和肥胖。患病率通过当地特定年龄和性别的人口普查数据进行计算和标准化。数据分析采用逻辑回归。
采用BMI、WC和WHR相结合的方法，超重和肥胖的患病率为69.8%，并随着年龄增长至60岁，之后有所下降。通过BMI评估的超重患病率高于通过WC和WHR评估的超重患病率，而通过BMI定义的肥胖患病率远低于通过WC或WHR定义的肥胖患病率。
中国成年人超重和肥胖的患病率约为70%。肥胖指标和年龄在超重和肥胖患病率中起着重要作用。
