Table 2. Prevalence of each risk behavior in its respective dimension, stratified by sex.
| Male | Female | ||
|---|---|---|---|
| Dimensions/questions | n (%) | n (%) | p-value |
| TV time | |||
| TV time (> 5 hours/day during the weekdays)* | 223 (8.5) | 353 (10.9) | < 0.01 |
| TV time (> 5 hours/day during the weekends)* | 404 (15.5) | 233 (7.3) | < 0.01 |
| Computer and videogame time | |||
| Game time (> 5 hours/day during the weekdays)* | 391 (15.0) | 176 (5.5) | < 0.01 |
| Game time (> 5 hours/day during the weekends)* | 653 (25.3) | 283 (8.9) | < 0.01 |
| Social support | |||
| Feeling sad (yes)† | 576 (21.8) | 1,190 (36.3) | < 0.01 |
| Feeling lonely (yes)† | 1,321 (49.6) | 2,240 (67.9) | < 0.01 |
| Parents understand my problems (yes)† | 1,218 (45.9) | 1,608 (48.9) | 0.02 |
| Parental supervision | |||
| Missing classes without consent (yes)† | 447 (16.8) | 538 (16.3) | 0.66 |
| Religious practice (no)‡ | 1,203 (45.4) | 1,132 (34.4) | < 0.01 |
| Health risk behaviors | |||
| Age at onset of alcohol use§ | < 0.01 | ||
| ≤ 13 years | 769 (28.8) | 793 (24.1) | |
| ≥ 14 years | 962 (36.1) | 1,379 (41.8) | |
| Age at onset of drug use§ | < 0.01 | ||
| ≤ 13 years | 107 (4.1) | 52 (1.6) | |
| ≥ 14 years | 285 (10.8) | 222 (6.8) | |
| Age at first sexual intercourse§ | < 0.01 | ||
| ≤ 13 years | 355 (14.3) | 157 (4.8) | |
| ≥ 14 years | 1,084 (43.6) | 1,046 (31.8) | |
| Sleep quality | |||
| Could not sleep because of worry/stress (yes)† | 1,102 (41.2) | 2,029 (61.4) | < 0.01 |
| Sleep quality (poor)|| | 739 (27.7) | 1,189 (36.0) | < 0.01 |
| Hours of sleep (< 6 hours)¶ | 1,031 (38.7) | 1,294 (39.4) | 0.58 |
| Violence and bullying | |||
| Experienced violence in the last month (yes)† | 397 (14.9) | 385 (11.7) | < 0.01 |
| Number of fights involved in the last month (≥ 4) | 172 (6.5) | 68 (2.1) | < 0.01 |
| Experienced bullying (yes)† | 495 (18.6) | 620 (18.8) | 0.84 |
| Aggression | |||
| Was assaulted, attacked or abused (yes)† | 9 (0.4) | 21 (0.6) | 0.11 |
| Something caused an injury (yes)† | 44 (1.7) | 72 (2.2) | 0.14 |
*≤ 5 hours/day; † no; § never; ‡ yes; || good; ¶ ≥ 6 hours.
Chi-square test.