生物电阻抗法与双能X线吸收法测定中国6~17岁儿童体成分的一致性分析

罗瑞鹤; 沈丽萍; 张倩; 曹薇; 王宏亮; 徐培培; 杨振宇; 甘倩; 庞学红; 徐韬; 陈博文; 王玉英; 赵文华

Abstract

罗瑞鹤,沈丽萍,张倩,曹薇,王宏亮,徐培培,杨振宇,甘倩,庞学红,徐韬,陈博文,王玉英,赵文华.生物电阻抗法与双能X线吸收法测定中国6~17岁儿童体成分的一致性分析[J].Chinese journal of Epidemiology,2024,45(11):1507-1512

生物电阻抗法与双能X线吸收法测定中国6~17岁儿童体成分的一致性分析

Consistency between bioelectrical impedance analysis and dual-energy X-ray absorptiometry in body composition measurement in children aged 6-17 years in China

Received:May 30, 2024

DOI：10.3760/cma.j.cn112338-20240530-00316

KeyWord: 生物电阻抗法双能X线吸收法体成分体脂质量去脂体重体脂百分比

English Key Word: Bioelectrical impedance analysis Dual-energy X-ray absorptiometry Body composition Fat mass Fat-free mass Fat mass percentage

FundProject:科技基础资源调查专项（2017FY101100）

Author Name	Affiliation	E-mail
Luo Ruihe	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Shen Liping	Division of Health Risk Factor Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
Zhang Qian	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Cao Wei	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Wang Hongliang	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Xu Peipei	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Yang Zhenyu	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Gan Qian	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Pang Xuehong	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Xu Tao	National Center for Women and Children's Health, National Health Commission, Beijing 100081, China
Chen Bowen	Capital Institute of Pediatrics, Beijing 100020, China
Wang Yuying	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Zhao Wenhua	National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing 100050, China	zhaowh@chinacdc.cn

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Abstract:

目的比较生物电阻抗法（BIA）与双能X线吸收法（DXA）测定6~17岁儿童体成分的一致性。方法利用便携式生物电阻抗仪和双能X线吸收仪同时测量1 161名儿童的去脂体重、体脂质量和体脂百分比，t检验或符号秩检验比较2种方法测量儿童去脂体重、体脂质量和体脂百分比的差异，采用Spearman相关系数（r值）和Bland-Altman分析评价2种方法测量结果的相关性和一致性。结果 BIA与DXA测定6~17岁儿童体成分为正相关（体脂质量r=0.95，去脂体重r=0.98，体脂百分比r=0.86，均P<0.05）。与DXA相比，BIA低估了儿童体脂质量［差值的均值为-3.15 kg，SD为2.35 kg，95%一致性界限（LoA）为-7.74~1.45 kg］和体脂百分比（差值的均值为-8.45%，SD为4.63%，95% LoA为-17.53%~0.64%）。结论 BIA与DXA测定6~17岁儿童体成分结果呈高度正相关，在测量6~17岁儿童体脂质量、去脂体重等体成分指标中具有应用价值。

English Abstract:

Objective To evaluate the consistency between bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA) in the measurement of body composition in children aged 6-17 years in China. Methods Fat-free mass, fat mass and fat mass percentage were measured by both BIA and DXA in 1 161 children. t-test or Wilcoxon paired test was used to evaluate the different outcome of the two methods. The correlation and consistency between the methods were evaluated by Spearman correlation coefficients (r) and Bland-Altman analysis. Results Body compositions measured by BIA was positively correlated with those measured by DXA (fat mass r=0.95, fat-free mass r=0.98, fat mass percentage r=0.86, all P<0.05). Comparing with DXA, BIA underestimate children's fat mass [the mean difference is -3.15 kg, and the SD is 2.35 kg, 95% limits of agreement (LoA): -7.74-1.45 kg] and fat mass percentage (the mean difference is -8.45%, and the SD is 4.63%, 95% LoA: -17.53%-0.64%). Conclusions Body compositions measured by BIA was highly positively correlated with those measured by DXA. BIA has certain application value in the measurement of body fat mass and fat-free mass of children aged 6-17 years.

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