Table 4.

Cognitive Level, Regression and Epilepsy/Paroxysmal EEG in the Cohort (N = 585)

Higher
Functioning
(N = 158)
Lower
Functioning
(N = 427)
P
Regression.002
 Yes32  (20%)144  (34%)
 No126  (80%)283  (66%)
Epilepsy or Epileptiform EEG.003
 Yes14  (09%)95  (22%)
 No78  (49%)210  (49%)
 No EEG66  (42%)122  (29%)
Regression or epilepsy or
 paroxysmal EEG
.005
 Both4  (03%)38  (09%).01
 Regression only18  (11%)71  (17%).12
 Epilepsy/epileptiform EEG
 only
10  (06%)57  (13%).02
 Neither60  (38%)139  (33%).21
 No EEG66  (42%)122  (29%).002