No (%) children having behaviour problems as reported by parents (n = 122)
| Normal | Borderline | Abnormal | |
| Total difficulties score | 93 (76.2) | 14 (11.4) | 13 (10.6) |
| Emotional symptoms score | 95 (77.8) | 13 (10.6) | 12 (9.8) |
| Conduct problems score | 91 (74.6) | 16 (13.1) | 13 (10.6) |
| Hyperactivity score | 89 (72.9) | 9 (7.4) | 22 (18.0) |
| Peer problems score | 93 (76.2) | 13 (10.7) | 14 (11.5) |
| Prosocial behaviour score | 105 (86.1) | 8 (6.6) | 7 (5.7) |