| Characteristic (dichotomous variables) | n (%) | ||
| Sex: females |
| 1418 (53.2) | |
| Age groups (years) | 7 - 9 10 - 12 13 - 15 16 - 18 | 372 (13.9) 1089 (40.6) 877 (32.7) 329 (12.3) | |
| Socioeconomic status | Low Medium High | 752 (28.2) 1500 (56.2) 425 (15.6) | |
| Have you smoked cigarettes (tobacco) | 176 (6.6) | ||
| Have you drunk (with alcohol) | 370 (13.9) | ||
| Have you smoked marijuana | 133 (5.0) | ||
| Have you inhaled glue (cement) | 53 (2.0) | ||
| Have you inhaled cocaine | 45 (1.7) | ||
| Have you hurt yourself intentionally | 233 (8.7) | ||
| Characteristic (continue variables) | Mean (±SD) | Internal consistency† | |
| EDS (adaptation of Test-26, total score) (0 - 82) | 17.53 (15.01) | 0.833 | |
| Age (7 - 18) | 12.56 (2.55) | - | |
| Socioeconomic score (0 - 69) | 9.32 (8.80) | 0.901 | |
| BMI (kg/m2)‡ | 19.99 (4.38) | - | |
| Students who have experienced: (1) addictive behavior | 323 (12.1) | - | |
| (2) addictive behaviors | 88 (3.3) | - | |
| (3) addictive behaviors | 83 (3.1) | - | |
| (4) addictive behaviors | 11 (0.4) | - | |
| (5) addictive behaviors | 16 (0.6) | - | |
| Body size dissatisfaction (−8 to 8) | 1.14 (1.35) | - | |
| Diet Quality Index (DQI-CR total score) (0 - 141) | 71.65 (22.39) | 0.899 | |
| Average screen hours (TV, e-games by computer, mobile phone, PlayStation, Wii, among others: 0 - 24 hours/day, during weekdays and weekend) | 5.59 (2.26) | - | |
| Frequency 0 - 7 days/week of physical activity, out of school and high school (average ≥ 60 minutes/day) | 3.37 (1.39) | - | |