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.

Koo et al. Nutrition Journal 2007 6:11   doi:10.1186/1475-2891-6-11

Open Data