Table 3.
Agreement between 3- and 4-compartment body composition models using body volume derived from a digital image, dual-energy x-ray absorptiometry, and underwater weighing in healthy adults.
|
|
Limits of agreement |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M ± SD | p | ES | r | rc | SEE | TE | CE ± 1.96 SD | Upper | Lower | Trend | |
| BVUWW | 69.53 ± 11.42 | – | – | – | – | – | – | – | – | – | |
| BVDXA-Smith-Ryan | 69.59 ± 11.78 | 0.601 | 0.01 | 0.998** | 0.73 | 0.25 | 0.06 ± 1.60 | 1.53 | −1.66 | 0.443* | |
| BVIMAGE | 69.64 ± 11.57 | 0.267 | 0.01 | 0.998** | 0.67 | 0.33 | 0.11 ± 1.34 | 1.45 | −1.23 | 0.224 | |
| %Fat4C-UWW | 18.05 ± 6.40 | – | – | – | – | – | – | – | – | – | – |
| %Fat4C-DXA-Smith-Ryan | 18.04 ± 6.39 | 0.988 | 0.00 | 0.876** | 0.876 | 3.11 | 3.14 | 0.01 ± 6.24 | 6.94 | −5.54 | −0.006 |
| %Fat3C-IMAGE | 19.46 ± 6.08 | <.001 | 0.22 | 0.939** | 0.914 | 2.22 | 2.60 | 1.41 ± 4.31 | 5.72 | −2.89 | −0.152 |
BV body volume, CE constant error, DXA dual-energy x-ray absorptiometry, ES effect size, FM fat mass, FFM fat-free mass, IMAGE 2D image analysis program, M mean, r Pearson Product Moment correlation coefficient, rc Lin’s concordance correlation coefficient, SD standard deviation, SEE standard error of the estimate, TE total error, UWW underwater weighing, 3C 3-compartment, 4C 4-compartment, %Fat relative adiposity.
*
p < 0.05.
**
p < 0.001.