Table 1.

Regression, Seizures, and Sleep EEG in the Cohort (N = 585)

Regression
(N = 176)
No regression
(N = 409)
Epilepsy (N = 66)21  (12%)45  (11%)
 Abnormal EEG12  (57%)30  (67%)
 Epileptiform11  (52%)28  (62%)
 Nonepileptiform1  (5%)2  (4%)
 Normal EEG5  (24%)10  (22%)
 No EEG4  (19%)5  (11%)
No Epilepsy (N = 519)155  (88%)364  (89%)
 Abnormal EEG29  (19%)38  (10%)
 Epileptiform21  (14%)22  (6%)
 Nonepileptiform8  (5%)16  (4%)
 Normal EEG84  (54%)184  (51%)
 No EEG42  (27%)142  (39%)