Table 1.
Characteristics of Study Sample
| N=3,000 | ||
|---|---|---|
| Characteristic | n | % |
| Age (Mean± SD) | 20.3±1.3 | |
| Age (years) | ||
| 18 | 162 | 5.4 |
| 19 | 705 | 23.5 |
| 20 | 860 | 28.6 |
| 21 | 728 | 24.3 |
| ≥ 22 | 545 | 18.2 |
| Sex | ||
| Female | 2,008 | 66.9 |
| Male | 992 | 33.1 |
| Cigarette smoking status | ||
| Never | 2,739 | 91.3 |
| Former | 55 | 1.8 |
| Current | 206 | 6.9 |
| Alcohol consumption | ||
| <1 drink/month | 1,986 | 66.2 |
| 1–19 drinks/month | 962 | 32.1 |
| ≥ 20 drinks/month | 52 | 1.7 |
| Body mass index (kg/m2) | ||
| Underweight (<18.5) | 495 | 16.5 |
| Normal (18.5–24.9) | 2,068 | 68.9 |
| Overweight (25.0–29.9) | 298 | 10.0 |
| Obese (≥30.0) | 139 | 4.6 |
| Any physical activity | ||
| No | 669 | 22.4 |
| Yes | 2,319 | 77.6 |