{"title":"DXA和BIA测定藏族成人体成分及体成分谱的验证。","authors":"Wenxiu Jian, Bin Zhang, Yue Ma, Xiao Tang, Tuan Thanh Nguyen, Meng Lv, Xiangyang Meng, Tiemei Li, Xiaomin Sun, Youfa Wang, Yanming Ren, Wen Peng","doi":"10.1017/S1368980025000291","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>We aimed to validate in-body bioelectrical impedance analysis (BIA) measures with dual-energy X-ray absorptiometry (DXA) as reference and describe the body composition (BC) profiling of Tibetan adults.</p><p><strong>Design: </strong>This cross-sectional study included 855 participants (391 men and 464 women). Correlation and Bland-Altman analyses were performed for method agreement of in-body BIA and DXA. BC were described by obesity and metabolic status.</p><p><strong>Setting: </strong>In-body BIA and DXA have not been employed to characterise the BC of the Tibetan population living in the Qinghai-Tibet Plateau.</p><p><strong>Participants: </strong>A total of 855 Tibetan adults, including 391 men and 464 women, were enrolled in the study.</p><p><strong>Results: </strong>Concordance correlation coefficient for total fat mass (FM) and total lean mass (LM) between in-body BIA and DXA were 0·91 and 0·89. The bias of in-body BIA for percentages of total FM and total LM was 0·91 % (2·46 %) and -1·74 % (-2·80 %) compared with DXA, respectively. Absolute limits of agreement were wider for total FM in obese men and women and for total LM in overweight men than their counterparts. Gradience in the distribution of total and regional FM content was observed across different BMI categories and its combinations with waist circumference and metabolic status.</p><p><strong>Conclusions: </strong>In-body BIA and DXA provided overall good agreement at the group level in Tibetan adults, but the agreement was inferior in participants being overweight or obese.</p>","PeriodicalId":20951,"journal":{"name":"Public Health Nutrition","volume":" ","pages":"e96"},"PeriodicalIF":3.0000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12171921/pdf/","citationCount":"0","resultStr":"{\"title\":\"Validation of measurement of body composition by dual-energy X-ray absorptiometry and bioelectrical impedance analysis and body composition's profiling in Tibetan's adults.\",\"authors\":\"Wenxiu Jian, Bin Zhang, Yue Ma, Xiao Tang, Tuan Thanh Nguyen, Meng Lv, Xiangyang Meng, Tiemei Li, Xiaomin Sun, Youfa Wang, Yanming Ren, Wen Peng\",\"doi\":\"10.1017/S1368980025000291\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>We aimed to validate in-body bioelectrical impedance analysis (BIA) measures with dual-energy X-ray absorptiometry (DXA) as reference and describe the body composition (BC) profiling of Tibetan adults.</p><p><strong>Design: </strong>This cross-sectional study included 855 participants (391 men and 464 women). Correlation and Bland-Altman analyses were performed for method agreement of in-body BIA and DXA. BC were described by obesity and metabolic status.</p><p><strong>Setting: </strong>In-body BIA and DXA have not been employed to characterise the BC of the Tibetan population living in the Qinghai-Tibet Plateau.</p><p><strong>Participants: </strong>A total of 855 Tibetan adults, including 391 men and 464 women, were enrolled in the study.</p><p><strong>Results: </strong>Concordance correlation coefficient for total fat mass (FM) and total lean mass (LM) between in-body BIA and DXA were 0·91 and 0·89. The bias of in-body BIA for percentages of total FM and total LM was 0·91 % (2·46 %) and -1·74 % (-2·80 %) compared with DXA, respectively. Absolute limits of agreement were wider for total FM in obese men and women and for total LM in overweight men than their counterparts. 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引用次数: 0
摘要
目的：我们旨在验证以DXA为参考的体内BIA测量，并描述西藏成年人的BC谱。设计：这项横断面研究包括855名参与者（391名男性和464名女性）。对体内BIA和DXA的方法一致性进行相关分析和Bland-Altman分析。BC通过肥胖和代谢状态来描述。背景：生物电阻抗分析（in - body BIA）和双能x射线吸收仪（DXA）尚未被用于表征青藏高原藏族人口的身体成分（BC）。参与者：共有855名藏族成年人参加了这项研究，其中包括391名男性和464名女性。结果：体内BIA与DXA的总脂肪质量（FM）和总瘦质量（LM）的一致性相关系数分别为0.91和0.89。与DXA相比，体内BIA对总FM和总LM百分比的偏倚分别为0.91%（2.46%）和-1.74%（-2.80%）。对于肥胖男性和女性的总FM和超重男性的总LM，绝对一致的界限比他们的同行更宽。在不同BMI类别及其与腰围和代谢状态的组合中，观察到总FM含量和区域FM含量分布的梯度。结论：体内BIA和DXA在藏族成人群体水平上提供了总体良好的一致性，但在超重或肥胖的参与者中，一致性较差。
Validation of measurement of body composition by dual-energy X-ray absorptiometry and bioelectrical impedance analysis and body composition's profiling in Tibetan's adults.
Objective: We aimed to validate in-body bioelectrical impedance analysis (BIA) measures with dual-energy X-ray absorptiometry (DXA) as reference and describe the body composition (BC) profiling of Tibetan adults.
Design: This cross-sectional study included 855 participants (391 men and 464 women). Correlation and Bland-Altman analyses were performed for method agreement of in-body BIA and DXA. BC were described by obesity and metabolic status.
Setting: In-body BIA and DXA have not been employed to characterise the BC of the Tibetan population living in the Qinghai-Tibet Plateau.
Participants: A total of 855 Tibetan adults, including 391 men and 464 women, were enrolled in the study.
Results: Concordance correlation coefficient for total fat mass (FM) and total lean mass (LM) between in-body BIA and DXA were 0·91 and 0·89. The bias of in-body BIA for percentages of total FM and total LM was 0·91 % (2·46 %) and -1·74 % (-2·80 %) compared with DXA, respectively. Absolute limits of agreement were wider for total FM in obese men and women and for total LM in overweight men than their counterparts. Gradience in the distribution of total and regional FM content was observed across different BMI categories and its combinations with waist circumference and metabolic status.
Conclusions: In-body BIA and DXA provided overall good agreement at the group level in Tibetan adults, but the agreement was inferior in participants being overweight or obese.
期刊介绍：
Public Health Nutrition provides an international peer-reviewed forum for the publication and dissemination of research and scholarship aimed at understanding the causes of, and approaches and solutions to nutrition-related public health achievements, situations and problems around the world. The journal publishes original and commissioned articles, commentaries and discussion papers for debate. The journal is of interest to epidemiologists and health promotion specialists interested in the role of nutrition in disease prevention; academics and those involved in fieldwork and the application of research to identify practical solutions to important public health problems.
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