在中国定义超重和肥胖的较低体重指数临界值。

Lower BMI cutoffs to define overweight and obesity in China.

作者信息

He Wei, Li Qingqing, Yang Min, Jiao Jingjing, Ma Xiaoguang, Zhou Yunjie, Song Aihua, Heymsfield Steven B, Zhang Shanchun, Zhu Shankuan

机构信息

Obesity and Body Composition Research Center, Chronic Disease Research Institute, Zhejiang University School of Public Health, School of Medicine, Hangzhou, China; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.

出版信息

Obesity (Silver Spring). 2015 Mar;23(3):684-91. doi: 10.1002/oby.20995. Epub 2015 Jan 22.

DOI:10.1002/oby.20995

PMID:25645003

Abstract

OBJECTIVE

To investigate ethnic difference in the associations of BMI with comorbidity, mortality, and body composition between mainland Chinese and U.S. whites.

METHODS

Ethnic-comparison study using data from China Health and Nutrition Survey, U.S. National Health and Nutrition Examination Survey, and data from Zhejiang University (China) and Columbia University (U.S.).

RESULTS

Chinese people experienced greater odds of comorbidities than whites for a given BMI after standardizing for age and sex: 43% for diabetes, 30% for dyslipidemia, 28% for hypertension, 38% for metabolic syndrome, and 48% for hyperuricemia. Comparisons of BMI-mortality associations found that the U-shaped BMI-mortality curve shifted 1-2 kg m(-2) to the left in Chinese compared to whites. Compared to whites at BMIs of 25 and 30 kg m(-2), corresponding cutoffs in Chinese were 22.5 and 25.9 kg m(-2) in men, and 22.8 and 26.6 kg m(-2) in women after both fat and fat distribution were taken into account.

CONCLUSIONS

Comorbidity, mortality, and body composition data consistently support the use of lower BMI cutoffs in Chinese than those in whites.

摘要

目的

研究中国大陆人群与美国白人在体重指数（BMI）与合并症、死亡率及身体组成之间关联上的种族差异。

方法

采用中国健康与营养调查、美国国家健康与营养检查调查以及浙江大学（中国）和哥伦比亚大学（美国）的数据进行种族比较研究。

结果

在对年龄和性别进行标准化后，对于给定的BMI，中国人患合并症的几率高于白人：糖尿病高43%，血脂异常高30%，高血压高28%，代谢综合征高38%，高尿酸血症高48%。BMI与死亡率关联的比较发现，与白人相比，中国人的U型BMI-死亡率曲线向左移动了1-2kg/m²。在考虑脂肪和脂肪分布后，与BMI为25和30kg/m²的白人相比，中国男性对应的临界值分别为22.5和25.9kg/m²，中国女性对应的临界值分别为22.8和26.6kg/m²。