Characteristics | Total | Boys | Girls | P | |||
---|---|---|---|---|---|---|---|
n | % | N | % | n | % | Â | |
Total | 643 | 100 | 318 | 49.5 | 325 | 50.5 | Â |
Age (mean ± SD) | 16.99 ± 0.86 | 17.03 ± 0.89 | 16.96 ± 0.83 | 0.341a | |||
Age group | Â | Â | Â | Â | Â | Â | 0.042b |
 16 | 228 | 35.5 | 114 | 35.85 | 114 | 35.08 |  |
 17 | 203 | 31.6 | 87 | 27.36 | 116 | 35.69 |  |
 18–20 | 212 | 32.9 | 117 | 36.79 | 95 | 29.23 |  |
Type of school | Â | Â | Â | Â | 0.208b | ||
 Specialized | 211 | 32.8 | 99 | 31.1 | 112 | 34.5 |  |
 Regular | 432 | 67.2 | 219 | 68.9 | 213 | 65.5 |  |
Grade | Â | Â | Â | Â | 0.027b | ||
 10 | 231 | 35.9 | 116 | 36.5 | 115 | 35.4 |  |
 11 | 201 | 31.3 | 85 | 26.7 | 116 | 35.7 |  |
 12 | 211 | 32.8 | 117 | 36.8 | 94 | 28.9 |  |