Table 1. Demographic variables and measures.
| Variable | N | Percentage (%) or Mean | [95% Confidence interval] or (SD) |
|---|---|---|---|
| Age | |||
| 13 years or less | 59 | 3.7 | [2.9–4.8] |
| 14 | 329 | 20.6 | [18.7–22.7] |
| 15 | 404 | 25.3 | [23.2–27.6] |
| 16 | 386 | 24.2 | [22.1–26.4] |
| 17 | 303 | 19.0 | [17.1–21.0] |
| 18 years or more | 113 | 7.1 | [5.9–8.5] |
| Gender | |||
| Female | 754 | 47.4 | [44.9–49.9] |
| Male | 836 | 52.6 | [50.1–55.1] |
| Repeated grade | |||
| No | 1,258 | 78.9 | [76.8–80.9] |
| Yes | 336 | 21.1 | [19.1–23.2] |
| Prior psychological treatment | |||
| No | 1,014 | 63.6 | [61.2–66.0] |
| Yes | 580 | 36.4 | [34.0–38.8] |
| Measures | |||
| Depressive symptoms | 1.594 | 8.23 | (6.00) |
| Anxiety symptoms | 1.591 | 8.07 | (5.23) |
| Suicidal ideation | 1.594 | 1.19 | (1.88) |
| Defeat | 1.594 | 7.64 | (3.96) |
| Entrapment | 1.594 | 7.29 | (4.00) |
| Rumination | 1.591 | 9.45 | (4.39) |