Groups (school) | Frequency | Age (years) | Class (frequency/%) | Age p-value | |||
(n)% | mean ± S.E.M | First | Second | Third | Missed | ||
Academic | 945 (79.6) | 16.1 ± 0.1 | 269 (28.5) | 317 (33.5) | 357 (37.8) | 2 (0.2) | control |
Co-academic | 123 (10.4) | 18.4 ± 1.2 | 1 (0.8) | 16 (13) | 106 (86.2) | - | <0.0001 |
Commercial | 62 (5.2) | 16.5 ± 0.2 | 25 (40.3) | 20 (32.3) | 17 (27.4) | - | 0.1 |
Technical | 57 (4.8) | 16.6 ± 0.2 | 31 (54.4) | 23 (40.4) | 3 (5.3) | - | 0.07 |