Table 3.
Prediction values of physiologic variables including age, race, gender, and absolute values (left 2 columns) or age and gender specific Z scores (right 2 columns) of anthropometric measurements for plasma concentrations of leptin and leptin soluble receptor*, and leptin soluble receptor:leptin molar ratio.
| Dependent variable – plasma leptin (ng/mL) | |||
| Independent variables: R2 0.49 | Beta (p) | Independent variables: R2 0.46 | Beta (p) |
| Weight (g) | 1.87 (0.001) | Weight Z score | 0.83 (0.001) |
| Length (cm) | -2.17 (0.001) | Length Z score | -0.44 (0.01) |
| Gender (Female = 1, male = 0) | 0.27 (0.03) | ||
| Dependent variable – plasma soluble leptin receptor : leptin molar ratio | |||
| Independent variables: R2 0.50 | Independent variables: R2 0.44 | ||
| Age (d) | -0.75 (0.001) | Weight Z score | 0.66 (0.001) |
| Weight (g) | 1.51 (0.001) | ||
| Gender (Female = 1, male = 0) | 0.39 (0.01) | ||
* None of the physiologic variables was predictive for plasma soluble receptor concentration.