Table 1.
Characteristics of the study sample
| Total | Sample 1 | Sample 2 | p- value | |
|---|---|---|---|---|
| Frequency (%) | Frequency (%) | Frequency (%) | ||
| Gender | ||||
| Male | 270 (33.5%) | 131 (3.4%) | 139 (34.6%) | 0.518 |
| Female | 536 (66.5%) | 273 (67.6%) | 263 (65.4%) | |
| Marital status | ||||
| Single | 533 (67.0%) | 263 (66.1%) | 270 (67.8%) | 0.395 |
| Married | 230 (28.9%) | 120 (30.2%) | 110 (27.6%) | |
| Widowed | 11 (1.4%) | 7 (1.8%) | 4 (1.0%) | |
| Divorced | 22 (2.8%) | 8 (2.0%) | 14 (3.5%) | |
| Education level | ||||
| Primary | 24 (3.1%) | 11 (2.8%) | 13 (3.3%) | 0.760 |
| Complementary | 61 (7.8%) | 34 (8.7%) | 27 (6.9%) | |
| Secondary | 125 (15.9%) | 60 (15.3%) | 65 (16.6%) | |
| University | 574 (73.2%) | 288 (73.3%) | 286 (73.1%) | |
| Monthly income | ||||
| No income | 340 (45.1%) | 168 (44.4%) | 172 (45.7%) | 0.140 |
| < 1000 USD | 247 (32.8%) | 121 (32.0%) | 126 (33.5%) | |
| 1000–2000 USD | 117 (15.5%) | 56 (14.8%) | 61 (16.2%) | |
| > 2000 USD | 50 (6.6%) | 33 (8.37%) | 17 (4.5%) | |
| Smoking | ||||
| Yes | 246 (30.8%) | 127 (31.7%) | 119 (29.8%) | 0.572 |
| No | 554 (69.2%) | 274 (68.3%) | 280 (70.2%) | |
| Alcohol | ||||
| Yes | 32 (4.2%) | 12 (3.1%) | 20 (5.4%) | 0.124 |
| No | 724 (95.8%) | 372 (96.9%) | 352 (94.6%) | |
| Caffeinated beverages | ||||
| Yes | 721 (90.0%) | 362 (90.5%) | 359 (89.5%) | 0.646 |
| No | 80 (10.0%) | 38 (9.5%) | 42 (10.5%) | |
| Practicing sport activities | ||||
| Yes | 490 (62.4%) | 248 (63.6%) | 242 (61.3%) | 0.501 |
| No | 295 (37.6%) | 142 (36.4%) | 153 (38.7%) | |
| BMI categories | ||||
| Underweight | 65 (8.3%) | 36 (9.3%) | 29 (7.3%) | 0.733 |
| Normal | 417 (53.1%) | 204 (52.4%) | 213 (53.8%) | |
| Overweight | 211 (26.9%) | 106 (27.2%) | 105 (26.5%) | |
| Obese | 92 (11.7%) | 43 (11.1%) | 49 (12.4%) | |
| Mean ± SD | Mean ± SD | Mean ± SD | ||
| Age (in years) | 27.59 ± 11.76 | 27.96 ± 11.83 | 27.19 ± 11.68 | 0.354 |
| BMI (Kg/m2) | 24.35 ± 5.28 | 24.10 ± 4.98 | 24.60 ± 5.55 | 0.182 |