用生物电阻抗分析和双能x线吸收仪比较西班牙裔糖尿病患者的身体成分。

W L Beeson, M Batech, E Schultz, L Salto, A Firek, M Deleon, H Balcazar, Z Cordero-Macintyre
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摘要

目的:本研究的目的是比较Tanita四极足对足生物电阻抗分析(TBF-310模型,Tanita Corporation of America, Inc ., Arlington Heights, IL;Tanita-BIA)和扇束双能x射线吸收仪(Hologic Discovery A v12.6, Waltham, MA;糖尿病患者的DXA)。方法:70名西班牙裔糖尿病患者(男性23人,女性47人;平均年龄:53.03±10.32岁;平均体重:81.45±17.65 kg;和平均体重指数:31.40±6.80 kg/m(2)),选择来自洛马琳达大学En Balance文化敏感的西班牙糖尿病教育项目的基线数据。结果:采用Pearson (FM: 0.96, %FM: 0.91, FFM: 0.95)和Spearman等级(FM: 0.94, %FM: 0.91, FFM: 0.93)相关系数对DXA vs Tanita-BIA脂肪质量(FM)、百分比脂肪质量(%FM)和无脂质量(FFM)进行比较。Bland-Altman分析也用于比较DXA和BIA结果的差异(DXA - BIA)与平均值,并显示两种方法之间的基本一致。当Tanita-BIA回归到DXA时,调整后的R(2)为:FM=0.91;%调频= 0.83;FFM = 0.90。使用数据的自举重新抽样计算性别联合一致性相关性与95%置信区间的相关性,发现高相关性[FM: 0.93 (95% CI: 0.89, 0.96)], [%FM: 0.86 (95% CI: 0.79, 0.90)]和[FFM: 0.93 (95% CI: 0.89, 0.96)]。结论:Tanita-BIA可为西班牙裔糖尿病患者提供有效的脂肪、体脂百分比和无脂质量测量方法,可作为社区研究中方便实用的评估方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Comparison of body composition by bioelectrical impedance analysis and dual-energy X-ray absorptiometry in Hispanic diabetics.

OBJECTIVE: The purpose of this study was to compare Tanita tetrapolar foot-to-foot bioelectrical impedance analysis (Model TBF-310, Tanita Corporation of America, Inc, Arlington Heights, IL; Tanita-BIA) and fan beam dual-energy X-ray absorptiometry (Hologic Discovery A v12.6, Waltham, MA; DXA) in diabetic patients. METHODS: Seventy Hispanic diabetic participants (23 male, 47 female; mean age: 53.03 ± 10.32 yrs; mean weight: 81.45 ± 17.65 kg; and mean body mass index: 31.40 ± 6.80 kg/m(2)) were selected from the Loma Linda University En Balance culturally-sensitive Spanish diabetes education program using the baseline data. RESULTS: DXA vs Tanita-BIA fat mass (FM), percent fat mass (%FM), and fat-free mass (FFM) were compared using Pearson's (FM: 0.96, %FM: 0.91, and FFM: 0.95), and Spearman's rank (FM: 0.94, %FM: 0.91, and FFM: 0.93) correlation coefficients. Bland-Altman analyses were also used to compare the difference (DXA - BIA) vs average of DXA and BIA results and showed general agreement between the two methods. When Tanita-BIA was regressed onto DXA, the adjusted R(2) was: FM=0.91; %FM=0.83; FFM=0.90. Gender combined concordance correlations with 95% confidence intervals were calculated using a bootstrap re-sampling of the data and found high associations [FM: 0.93 (95% CI: 0.89, 0.96)], [%FM: 0.86 (95% CI: 0.79, 0.90)], and [FFM: 0.93 (95% CI: 0.89, 0.96)]. CONCLUSION: Tanita-BIA may provide valid measures of fat, percent body fat and fat-free mass in Hispanic diabetics, and could be a convenient and practical approach for assessment in community-based research.

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