Table 3.
Multiple regression analysis of serum leptin determinants
| Independent variables | Standardized β | T value | P value | 95%CI for B |
Collinearity statistics |
|
| Tolerance | VIF | |||||
| BMI | 0.017 | 1.057 | 0.292 | -0.015-0.049 | 0.238 | 4.208 |
| BMR | 0.000 | 2.281 | 0.024 | 0.000-0.001 | 0.396 | 2.526 |
| Muscle mass | -0.265 | -2.995 | 0.003 | -0.032-0.007 | 0.530 | 1.885 |
| Body water (%) | 0.308 | 1.875 | 0.063 | -0.002-0.060 | 0.147 | 6.792 |
| Body fat (%) | 0.488 | 2.588 | 0.011 | 0.008-0.058 | 0.129 | 7.751 |
| Bone mass | -0.191 | -2.137 | 0.034 | -0.032-0.007 | 0.523 | 1.912 |
| Waist Circumference | -0.022 | -0.201 | 0.841 | -0.011-0.009 | 0.468 | 2.138 |
| Log 25OHD | -0.253 | -3.816 | 0.000 | -0.720-0.232 | 0.944 | 1.060 |
| Male gender | -0.186 | -2.155 | 0.033 | -0.419-0.018 | 0.522 | 1.916 |
Dependent variable: was log leptin. Univariate analysis was conducted and variables that had significant association with leptin in univariate analysis at P < 0.2 were entered in multivariable analysis shown above. Coefficients (r) and P values are calculated using Pearson's correlation analysis. BMI: Body mass index; BMR: Basal metabolic rate; 25OHD: 25-hydroxy vitamin D; HDL: High density lipoprotein.