Body composition analysis by dual energy X-ray absorptiometry in female diabetics differ between manufacturers
Body composition analysis by dual energy X-ray absorptiometry in female diabetics differ between manufacturers
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DOI：
10.1038/sj.ejcn.1600424
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发表时间：
1997-07-01
影响因子：
4.7
通讯作者：
Svendsen, OL
中科院分区：
文献类型：
--
作者：
Kistorp, CN;Svendsen, OL
目的：比较两种双能X射线吸收测定法（DXA）仪器（即Hologic Inc的QDR-2000和Lunar的DPX）在瘦型和肥胖型受试者亚群中的身体组成结果。设计：对85名女性糖尿病患者进行的横断面研究（BMI 18-43 kg/m（2））。结果：脂肪组织质量（FTM）、脂肪百分比（FAT%）和全身骨矿物质含量（TBMC）的回归线与同一直线有显著性差异（P < 0.01），而瘦肉组织质量（LTM）无显著性差异（P> 0.05）。然而，相关性很高（r（2）> 0.95），相应的SEE%很低（0.8-4.8%），并且与BMI无关。QDR-2000测量的FTM和FAT%比DPX高10%，LTM和TBMC低6%（P < 0.001）。两个系统的单个结果无法直接比较。DXA测量人体成分的标准化是非常必要的。
Objective: Comparison of body composition results by two dual energy X-ray absorptiometry (DXA) instruments, namely QDR-2000 from Hologic Inc and DPX from Lunar in subpopulations of lean and obese subjects.Design: Cross-sectional study with 85 female diabetics (BMI 18-43 kg/m(2)) measured with both DXA instruments.Results: The regression lines for fat tissue mass (FTM), FAT% and total body bone mineral content (TBMC), but not lean tissue mass (LTM), were different from the line of identity (P < 0.01). However, the relationships were high (r(2) > 0.95), and the corresponding SEE%'s were low (0.8-4.8%), and were independent of BMI. FTM and FAT% measured by the QDR-2000 were 10% higher, and LTM and TBMC 6% lower, than by DPX (P < 0.001).Conclusions: There were lack of agreements between total body composition results by DPX Lunar, and QDR-2000 Hologic Inc. Individual results on the two systems cannot be directly compared. Standardization of body composition measurements by DXA is strongly needed.