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Characteristics of non-smoking study population (n = 57)
| Variables | Study subjects | |
|---|---|---|
| Mean | SD | |
| Age (year) | 34.4 | 3.2 |
| BMI (Kg/m2) | 23.0 | 3.6 |
| Waist circumstances (cm) | 78.4 | 9.9 |
| Time spent indoors (hours) | 19.5 | 3.6 |
| Time spent outdoors (hours) | 3.82 | 2.65 |
| Transit time (hours) | 0.70 | 0.66 |
| N | % | |
|---|---|---|
| Gender | ||
| Female | 32 | 56.1 |
| Male | 25 | 43.9 |
| Alcohol drinking | ||
| No | 50 | 87.7 |
| Yes | 7 | 12.3 |
| Vitamin supplement | ||
| No | 44 | 77.2 |
| Yes | 13 | 22.8 |
| Medicine taken | ||
| No | 54 | 94.7 |
| Yes | 3 | 5.3 |
| Regular exercise | ||
| No | 2 | 3.5 |
| Yes | 55 | 96.5 |
