Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai, China.
Biomed Environ Sci. 2010 Jun;23(3):173-9. doi: 10.1016/S0895-3988(10)60049-9.
To evaluate the present Chinese body mass index (BMI) criteria with body fat percentage (BF%) in determining obesity in Chinese population.
A total of 4 907 subjects (age: 20-90 yrs) were enrolled in the baseline survey of a longitudinal epidemiological study, and 2 638 of them were reevaluated in 5.5 years later. The Chinese BMI and WHO BF% were used to define obesity, respectively.
The diagnostic agreement between the Chinese BMI and WHO BF% definitions for obesity was poor for both men (kappa: 0.210, 95% CI: 0.179-0.241) and women (kappa: 0.327, 95% CI: 0.296-0.358). However, BMI had a good correlation with BF% both in men (r: 0.785, P<0.01) and women (r: 0.864, P<0.01). The age and sex-adjusted relative risks (RR) for incidence of type 2 diabetes (T2DM) were significantly higher in subjects with intermediate BF% (BF%:20.1%-25% for men, 30.1%-35% for women) (RR: 2.35, 95% CI: 1.23-4.48) and high BF%(BF%>25% for men and > 35% for women)(RR: 2.89, 95% CI: 1.43-5.81), or in subjects with high BMI (BMI>or=28 kg/m(2)) (RR: 2.46, 95% CI: 1.31-4.63) when compared to those with low BF% (BF%<or=20% for men and<or=30% for women) or low BMI (BMI24 kg/m(2)) respectively. No difference in risk could be found in those with intermediate BMI (BMI: 24-27.9 kg/m(2)) (RR: 1.44, 95% CI: 0.86-2.40), as compared to those with low BMI (BMI<24 kg/m(2)), whose BF% ranged widely from 7.8 to 50.3%.
BMI was correlated with BF%. Both BMI and BF% were associated with high risk for T2DM. However, BMI had its limitations in the interpretation of subjects with BMI between 24 and 27.9 kg/m(2).
评估目前的中国身体质量指数（BMI）标准与体脂百分比（BF%）在确定中国人群肥胖中的应用。
共纳入了一项纵向流行病学研究的基线调查中的 4907 名受试者（年龄：20-90 岁），其中 2638 名在 5.5 年后进行了重新评估。分别使用中国 BMI 和世界卫生组织 BF%来定义肥胖。
中国 BMI 和世界卫生组织 BF% 定义的肥胖诊断一致性在男性（kappa：0.210，95%CI：0.179-0.241）和女性（kappa：0.327，95%CI：0.296-0.358）中均较差。然而，BMI 与男性（r：0.785，P<0.01）和女性（r：0.864，P<0.01）的 BF%均具有良好的相关性。与低 BF%（男性：BF%<20%，女性：BF%<30%）或低 BMI（男性：BMI<24kg/m²，女性：BMI<24kg/m²）相比，中间 BF%（男性：BF%20.1%-25%，女性：BF%30.1%-35%）和高 BF%（男性：BF%>25%，女性：BF%>35%）或高 BMI（男性：BMI>28kg/m²，女性：BMI>28kg/m²）的受试者中，2 型糖尿病（T2DM）的发病相对风险（RR）明显更高（RR：2.35，95%CI：1.23-4.48）和（RR：2.89，95%CI：1.43-5.81），或高 BMI（男性：BMI>28kg/m²，女性：BMI>28kg/m²）的受试者（RR：2.46，95%CI：1.31-4.63）。与低 BF%（男性：BF%<20%，女性：BF%<30%）或低 BMI（男性：BMI<24kg/m²，女性：BMI<24kg/m²）相比，中间 BMI（男性：BMI 24-27.9kg/m²，女性：BMI 24-27.9kg/m²）的受试者之间没有发现风险差异（RR：1.44，95%CI：0.86-2.40），而这些受试者的 BF%范围很广，从 7.8%到 50.3%。
BMI 与 BF%相关。BMI 和 BF%均与 T2DM 的高风险相关。然而，BMI 在解释 BMI 在 24 到 27.9kg/m² 之间的受试者时存在局限性。
