Table 3.
Baseline and final models from backward stepwise multivariable linear regression analysis.
| Model | Beta (s.e.) | p-Value | R2 (corr.) | |
|---|---|---|---|---|
| Baseline | Age (years) | 0.047 (0.226) | 0.799 | 0.205 |
| Sex | −0.033 (0.476) | 0.717 | ||
| BMI (kg/m2) | −0.789 (0.203) | 0.047 | ||
| BMI-SDS | 0.325 (1.564) | 0.235 | ||
| Absolute body fat (kg); Caliper | 1.315 (0.172) | 0.002 | ||
| Relative body fat (%); Caliper | −0.296 (0.197) | 0.067 | ||
| Absolute physical fitness (W) | −0.282 (0.019) | 0.254 | ||
| Relative physical fitness (W/kg) | 0.188 (1.261) | 0.323 | ||
| Vitamin D (ng/mL) | −0.149 (0.023) | 0.079 | ||
| Final | Vitamin D (ng/mL) | −0.154 (0.022) | 0.058 | 0.210 |
| Absolute body fat (kg); Caliper | 0.403 (0.033) | <0.001 |
BMI = body mass index; SDS = standard deviation score; s.e.: standard error.