Table 3

Prediction equation for fat-free mass (n = 78).

Developed equation

Cross-Validated equation



Intercept

Age

H2/R

BW(kg)

Xc (Ω)

R2

MSE (kg)

SQRRMSE (kg)

Pure Error

- 2.4658

- 0.1773

0.7374

0.1763

0.1198

0.969

3.97

1.99

2.96

R2 increase when this IV is added

-

0.0038

0.9323

0.0281

0.0047

-

-

-

-

Total R2 for this IV and the rest

-

0.0038

0.9361

0.9642

0.9689

-

-

-

-

R2 when this IV is fit alone

-

0.0038

0.9149

0.7273

0.0256

-

-

-

-

Partial R2 adjusted for other IVs

-

0.2920

0.8767

0.420

0.1303

-

-

-

-


Ht2/R = Height2 (cm)/resistance (Ω); BW = Body weight (kg); Xc = reactance (Ω); MSE = Mean square error, SQRMSE = Square root of MSE; IV = independent variable.

Macias et al. Nutrition Journal 2007 6:18   doi:10.1186/1475-2891-6-18

Open Data