Table 1. Sociodemographic characteristics.
*the variables are based on 61 smokers with 4 missing values.
| Parameter | Category | Results |
| Sex | Men | 285 (56.0%) |
| Women | 224 (44.0%) | |
| Age | <20 years | 81 (15.9%) |
| 20 to 23 years | 337 (66.2%) | |
| >23 years | 91 (17.9%) | |
| Height (cm) | Median (IQR) | 168.0 (159.0, 173.5) |
| Weight (Kg) | Median (IQR) | 65.0 (54.0, 80.0) |
| BMI (Kg/m2) | Median (IQR) | 23.2 (20.1, 28.0) |
| BMI categories | Underweight | 77 (15.1%) |
| Healthy weight | 243 (47.7%) | |
| Overweight | 101 (19.8%) | |
| Obese | 88 (17.3%) | |
| Marital status | Single | 496 (97.4%) |
| Married | 13 (2.6%) | |
| Smoker | Yes | 61 (12.0%) |
| Number of cigarettes per day* | Median (IQR) | 10.0 (6.0, 20.0) |
| Years of smoking* | Median (IQR) | 5.0 (4.0, 7.0) |
| Do you exercise? | Yes, regularly | 92 (18.1%), |
| Yes, but occasionally | 290 (57.0%) | |
| No, not at all | 127 (25.0%) | |
| Number of cups of coffee per week | None | 111 (21.8%) |
| 1 to 3 | 138 (27.1%) | |
| 4 to 7 | 163 (32.0%) | |
| >7 | 97 (19.1%) |