Table 4.
Multivariate regression models for the prediction of DXA muscle mass measured by BIA.
| Whole Body Muscle Mass | Appendicular Skeletal Muscle Mass | ||||||
|---|---|---|---|---|---|---|---|
| Co-Efficient | 95% CI | Co-Efficient | 95% CI | ||||
| Lower | Upper | Lower | Upper | ||||
| Intercept | 4.01 | 0.80 | 7.22 | Intercept | 5.07 | 3.67 | 6.47 |
| BIA-WBMM | 0.61 | 0.48 | 0.74 | BIA-ASMM | 0.24 | 0.12 | 0.37 |
| (BIA-WBMM)2 | 0.00 | 0.00 | 0.00 | (BIA-ASMM)2 | 0.01 | 0.01 | 0.01 |
| BMI | 0.28 | 0.19 | 0.38 | BMI | 0.26 | 0.21 | 0.31 |
| Gender | −2.93 | −3.37 | −2.48 | Gender | −1.19 | −1.45 | −0.93 |
| BIA-fat percent | 0.10 | 0.05 | 0.15 | BIA-fat percent | −0.06 | −0.08 | −0.04 |
WBMM, whole body muscle mass; ASMM, appendicular skeletal muscle mass; BIA, bioelectrical impedance analysis; DXA, dual-energy X-ray absorptiometry; CI, confidence interval.