Table 3.

Stepwise logistic regression.

Question		P value	OR	95% C.I. for OR
Symptomatic etiology?	No (42)	.001	Reference	13.3–796.9
	Yes (74)		102.9
Prior history of epilepsy?	No (41)	.001	Reference	2.1–11.6
	Yes (75)		5.0

Symptomatic etiology −2 log likelihood: 98.346 Nagelkerke R Square: .554; Prior history of epilepsy −2 log likelihood: 145.205 Nagelkerke R Square: .165