| Clinical data | Effective (%) | Abnormal CT (%*) | Normal CT (n) | p value |
| Type of epilepsy Focal Generalized | 85 (56.3) 66 (43.7) | 46 (54.1) 47 (71.2) | 39 19 | 0.02 |
| Patient’s age ≤2 years >2 years | 38 (25.2) 113 (74.8) | 35 (92.1) 58 (51.3) | 3 55 | 0.00 |
| Age of the disease onset ≤1 year >1 year | 75 (49.7) 76 (50.3) | 60 (80) 33 (43.4) | 15 43 | 0.00 |
| Microcephaly | 37 (24.5) | 33 (89.2) | 4 | 0.00 |
| Cerebral palsy | 33 (21.9) | 30 (90.9) | 3 | 0.00 |
| Frequency of seizures >1/day ≤1/day | 95 (62.9) 56 (37.1) | 50 (52.6) 43 (76.8) | 45 13 | 0.002 |
| Mental retardation | 82 (54.3) | 67 (81.7) | 15 | 0.00 |
| Neurologic deficit | 78 (51.7) | 65 (83.3) | 13 | 0.00 |
| Abnormal EEG | 104 (68.,9) | 66 (63.5) | 38 | 0.29 |
| Obstetrical history | ||||
| Maternal non-infectious disease | 12 (7.9) | 11 (91.7) | 1 | 0.02 |
| Birth asphyxia | 64 (42.4) | 49 (76.6) | 15 | 0.00 |
| History of complex febrile seizures | 43 (28.5) | 27 (62.8) | 16 | 0.5 |
| Seizures refractory to medication | 40 (26.5) | 30 (75) | 10 | 0.03 |