Table 4.
Prediction values of physiologic variables including age, race, gender, and absolute values (left 2 columns) or percent bone, lean and fat mass (right 2 columns) for plasma leptin and leptin soluble receptor concentrations, and leptin soluble receptor:leptin molar ratio
| Dependent variable – plasma leptin (ng/mL) | |||
| Independent variables: R2 0.37 | Beta (p) | Independent variables: R2 0.37 | Beta (p) |
| Age (d) | -0.65 (0.001) | Age (d) | -0.34 (0.01) |
| Fat (g) | 0.44 (0.003) | Fat% | 0.42 (0.003) |
| Dependent variable – plasma soluble leptin receptor (ng/mL) | |||
| Independent variables: R2 0.22 | Independent variables: R2 0.43 | ||
| Fat (g) | 0.47 (0.004) | BMC% | -0.63 (0.004) |
| Lean% | -14.1 (0.001) | ||
| Fat% | -13.8 (0.001) | ||
| Dependent variable – plasma soluble leptin receptor : leptin ratio | |||
| Independent variables: R2 0.54 | Independent variables: R2 0.59 | ||
| Age (d) | -0.71 (0.001) | BMC% | -0.59 (0.002) |
| Fat (g) | 0.72 (0.001) | Lean% | -7.04 (0.02) |
| Fat% | -6.42 (0.03) | ||