Table 2.
Multiple linear regression model for predicting ASMMDXA from FMBIA, gender, BMI, and grip strength
| Coefficient | SE | p-Value | R2 cumulative | RMSD | |
|---|---|---|---|---|---|
| Constant | 7.145 | 1.555 | <0.001 | --- | --- |
| Gender (male = 0; female = 1) | −0.284 | 0.780 | <0.001 | 0.404 | 3.552 |
| BMI, kg/m2 | 0.504 | 0.061 | <0.001 | 0.631 | 2.795 |
| Grip strength, kg | 0.146 | 0.033 | <0.001 | 0.677 | 2.613 |
| FMBIA, % | −0.108 | 0.044 | <0.001 | 0.69 | 2.561 |
Equation: 7.1 + (−2.8* Gender)+(0.5* BMI)+(0.1* Max Grip Strength)+ (−0.1*BIAfat)
ASMMDXA: appendicular skeletal muscle mass measured by DXA; BIA: bioelectrical impedance analysis; BMI:body mass index; DXA: dual-x-ray absorptiometry; FMBIA: Fat mass measured by BIA; SE: standard error of the coefficient; RMSD: Root mean square deviation.