. 2017 Mar 9;159(5):757–766. doi: 10.1007/s00701-017-3127-y

Table 4.

Univariate and multivariate logistic regression analyses of characteristics related to Engel class I outcome

Characteristic analysed	Patient	Unit	Univariate analysis			Multivariate analysis
Characteristic analysed	N	Unit	OR	(95% CI)	p value	OR	(95% CI)	p value
Age at seizure onset	26	Year	1.15	(0.98–1.31)	0.055
Age at surgery	26	Year	1.05	(0.97–1.14)	0.250
Ictal seizure semiology	26	If typical	6.90	(1.01–48.3)	0.048^a	9.53	(0.84–108.1)	0.069
Focal dyscognitive seizures (frequency/month)	25	Number	0.90	(0.77–1.05)	0.180
Bilateral convulsive seizures (frequency/year)	12	Number	0.95	(0.88–1.03)	0.222
Ictal scalp EEG	26	If localised	11.6	(1.17–114.3)	0.036^a	15.0	(1.08–208.5)	0.044^b

CI confidence interval, N number, OR odds ratio

^aAt the 0.05 level, typical ictal seizure semiology and localised discharges on ictal scalp EEG are significantly associated with Engel class I outcome on univariate analysis

^bAt the 0.05 level, localised discharges on ictal scalp EEG are significantly associated with Engel class I outcome on multivariate analysis