| Subtypes of ADHD among case group according to DSM-5 | | |
| Predominantly inattentive | 15 | 37.5% |
| Predominantly hyperactive | 6 | 15% |
| Combined | 19 | 47.5% |
| School achievement | | |
| Achievable | 8 | 20% |
| Non achievable | 32 | 80% |
| Consanguinity | | |
| Positive | 13 | 32.5% |
| Negative | 27 | 67.5% |
| Family history (FH) of ADHD | | |
| Positive FH | 12 | 30% |
| Negative FH | 28 | 70% |
| Data from Conner’s parent rating scale-revised (L) items among case group |
| | I | II | III | IV | V |
| | No | % | I | % | No | % | No | % | No | % |
| L (Inattentive) | 6 | 15% | 1 | 2.5% | 5 | 12.5% | 7 | 17.5% | 21 | 52.5% |
| M (Hyperactive-Impulsive) | 9 | 22.5% | 4 | 10% | 0 | 0% | 3 | 7.5% | 24 | 60% |
| N (Total) | 6 | 15% | 3 | 7.5% | 4 | 10% | 5 | 12.5% | 22 | 55% |
