| Factor | F No. (1000) | M.SD | T P. value |
| Physical activity Sedentary Active Active |
626 374 |
47.92 ± 3.64 48.4 ± 3.84 |
0.2* 0.022 |
| Smoking Not smokers Smokers |
615 385 |
47.81 ± 4.15 47.42 ± 3.53 |
1.97* 0.024 |