Table 4.

The risk factors of electroencephalographic abnormalities in stroke patients.

	Abnormal EEG				Generalized slowing				Focal slowing				Epileptiform
	Odds ratio	CI 95%		p-value	Odds ratio	CI 95%		p-value	Odds ratio	CI 95%		p-value	Odds ratio	CI 95%		p-value
		Lower limit	Upper limit			lower limit	Upper limit			Lower limit	Upper limit			Lower limit	Upper limit
Age	1.033	1.003	1.063	0.032*	1.067	1.024	1.111	0.002*	0.977	0.944	1.011	0.175	1.034	0.963	1.111	0.357
Gender
Male	0.836	0.386	1.812	0.651	3.396	1.350	8.540	0.009*	1.285	0.547	3.018	0.565	0.046	0.002	1.217	0.065
Female (reference)
Comorbidities
Hypertension	1.503	0.645	3.505	0.345	1.128	0.372	3.424	0.831	1.414	0.515	3.880	0.501	3.966	0.339	46.337	0.272
Diabetes mellitus	2.177	1.048	4.524	0.037*	2.242	0.958	5.248	0.063	1.719	0.783	3.773	0.177	0.455	0.093	2.214	0.329
Dyslipidemia	0.59	0.283	1.228	0.158	0.668	0.293	1.521	0.337	0.746	0.325	1.709	0.488	0.583	0.105	3.232	0.537
Atrial fibrillation	1.748	0.545	5.600	0.347	1.769	0.555	5.641	0.335	1.214	0.389	3.788	0.739	0.599	0.059	6.062	0.664
Coronary artery disease	1.046	0.332	3.293	0.938	0.136	0.015	1.231	0.076	3.467	1.068	11.258	0.039*	1.187	0.103	13.642	0.891
Smoking	0.623	0.267	1.454	0.274	0.641	0.237	1.735	0.382	0.778	0.297	2.039	0.610	2.914	0.091	92.789	0.545
NIHSS on presentation	1.090	1.029	1.154	0.003*	1.013	0.959	1.070	0.640	1.089	1.033	1.147	0.002*	0.929	0.823	1.048	0.23
Stroke type
Anterior circulation	3.628	1.615	8.150	0.002*	0.692	0.256	1.871	0.468	4.554	1.922	10.789	0.001*	4.192	0.724	24.282	0.11
Posterior circulation	0.777	0.241	2.500	0.672	2.009	0.582	6.939	0.27	0.389	0.066	2.279	0.295	0	0	0	0.998
Lacunar (reference)

*Significant, p < 0.05.