Table 4.

Physician-reported Changes in Patients’ Management in the Intervention and Control Arms at Patient Disposition

Questionnaire at the Time of ED Disposition	n/N (%) 95% CI
Intervention group
EEG helped establish a diagnosis	43/73 (59) 47–69
EEG affected pre-EEG diagnostic impression:
a. Ruled out a diagnosis	32/73 (44) 33–55
b. Confirmed a diagnosis	15/73 (21) 13–31
c. No change	26/73 (36) 26–47
EEG changed the overall diagnostic work-up or disposition	36/73 (49) 38–61
EEG changed the overall treatment plan	31/73 (42) 32–54
Control group
The diagnosis changed during the ED work-up	15/76 (20) 12–30
The overall diagnostic management changed since enrollment	11/76 (14) 8–24
The overall treatment plan changed because of a laboratory test or an imaging study	35/76 (46) 35–57
Would you have ordered an EEG, had you had it available?	45/74 (61) 49–71

EEG = electroencephalogram.