| Characteristic | n (%) |
|---|---|
| Gender | |
| Boy | 117 (47.2) |
| Girl | 131 (52.8) |
| Age, years, mean (SD)a | 12.4 (3.0) |
| Age group, years | |
| 8–12 | 131 (52.8) |
| 13–17 | 117 (47.2) |
| Establishment | |
| Primary (elementary school) | 83 (33.5) |
| College (middle school) | 93 (37.5) |
| Lycée (high school) | 67 (27.0) |
| CAP | 2 (0.8) |
| IME | 2 (0.8) |
| ULIS | 1 (0.4) |
| Class/level | |
| CE1 | 15 (6.0) |
| CE2 | 16 (6.5) |
| CM1 | 37 (14.9) |
| CM2 | 16 (6.5) |
| 6ème | 31 (12.5) |
| 5ème | 20 (8.1) |
| 4ème | 21 (8.5) |
| 3ème | 20 (8.1) |
| 2nde | 23 (9.3) |
| 1ère | 18 (7.3) |
| Tle | 25 (10.1) |
| 1ière professionnelle | 1 (0.4) |
| CAP | 2 (0.8) |
| IME | 2 (0.8) |
| ULIS | 1 (0.4) |
aRange = 8–17; median = 12. 1ère = 10th year or grade of high school. 1ière professionnelle = 1st professional school. 2nde = 9th year or grade of high school. 3ème = 8th year or grade of middle school. 4ème = 7th year or grade of middle school. 5ème = 6th year or grade of middle school. 6ème = 5th year or grade of elementary school. CAP = certificate of professional competence. CE1 = 1st year or grade of elementary school. CE2 = 2nd year or grade of elementary school. CM1 = 3rd year or grade of elementary school. CM2 = 4th year or grade of elementary school. IME = Medical Education Institute (special education). SD = standard deviation. Tle = 11th year or grade of high school. ULIS = Local Units of Inclusive Education.