TABLE 1.

Demographic and Seizure Characteristics for Categorical Language Activation Patterns of Patients

Characteristic	Patients, n = 220	Controls, n = 118
Gender
Male	55%, n = 121	51%, n = 60
Female	45%, n = 99	49%, n = 58
Mean age, Yr (SD)	21.9 (12.2)	17.8 (10.5)
Handedness
Right	80%, n = 175	100%, n = 118
Ambidextrous	7%, n = 16	0%, n = 0
Left	13%, n = 29	0%, n = 0
Full scale IQ		N/A
Mean (SD)	92 (16)
Range	42–135
Age of onset		N/A
Early	31%, n = 68
Late	68%, n = 149
Missing	1%, n = 3
Mean (SD)	11.8 (9.2)
Focus		N/A
Left	60%, n = 133
Right	40%, n = 87
LT	40%, n = 87
RT	19%, n = 41
LF	14%, n = 31
LP	3%, n = 7
LO	1%, n = 1
RF	0%, n = 0
RP	3%, n = 7
RO	1%, n = 3
Multiple	8%, n = 18
Missing	11%, n = 25
MRI type
Normal	30%, n = 66	100%, n = 118
MTS	20%, n = 43	0%, n = 0
Lesion	33%, n = 73	0%, n = 0
Vascular	10%, n = 22	0%, n = 0
Inflammatory	2%, n = 4	0%, n = 0
Other	3%, n = 7	0%, n = 0
Dual pathology	2%, n = 5	0%, n = 0
Missing	0%, n = 0	0%, n = 0

IQ = intelligence quotient; LF = left frontal; LO = left occipital; LP = left parietal; LT = left temporal; MRI = magnetic resonance imaging; MTS = mesial temporal sclerosis; N/A = not applicable; RF = right frontal; RO = right occipital; RP = right parietal; RT = right temporal; SD = standard deviation.