Factors associated with abnormal CT	Studies indicated by the fist author of the study^*
Factors associated with abnormal CT	Ref [11]	Ref [19]	Ref [12]	Ref [17]	Ref [16]	Ref [20]	Ref [10]	Ref [15]
Partial seizures	−	−	+		+	+	+
History of birth asphyxia				+
Age of onset ≤ 1 an				+
Neurologic deficit	+		+		+	+		+
Mental retardation	+							+
Pre and perinatal risk factors	−
High frequency of seizures	+	+
Abnormal EEG		+	+				+
Patients’ age < 2 ans		+