From: Effects of smoking cessation on serum leptin and adiponectin levels
| Variable | Correlation coefficient r | p value |
|---|---|---|
| Agea | 0.589 | <0.001 |
| Gender (male = 1, female = 2)a | 0.320 | 0.097 |
| Smoking (pack/years)a | 0.142 | 0.470 |
| Exhaled Carbon Monoxidea | −0.328 | 0.089 |
| Body mass index | −0.026 | 0.899 |
| CRP | 0.260 | 0.181 |
| Leptin | −0.153 | 0.437 |