Table 4.

Factors associated with a National Institutes of Health Stroke Scale score >7 for ischemic stroke patients with sleep apnea

Variables	B	Wald	OR	95% CI (lower-upper)		P
				Lower	Upper
Caucasian	−1.542	5.609	0.214	0.06	0.767	0.018*
Atrial fibrillation	1.212	6.145	3.36	1.289	8.762	0.013*
Dyslipidemia	0.822	2.707	2.274	0.855	6.053	0.1
Heart failure	0.897	2.753	2.451	0.85	7.067	0.097
Lipids	−0.21	2.91	0.81	0.636	1.032	0.088
Changes in ambulation	1.034	4.878	2.813	1.123	7.041	0.027*

Adjusted OR <1 denotes factors that are associated with not having a NIHSS score >7 while OR >1 denotes factors that are associated with having a NIHSS score >7. *Statistical significance (P <0.05) with a 95% CI. Backward stepwise model based on likelihood ratio was applied. Model assumptions were fulfilled. Multicollinearity and interactions among independent variables were checked, and no significant interactions were found. Hosmer-Lemeshow test (P=0.988), Cox and Snell (R²=0.191). OR: Odds ratio, CI: Confidence interval, NIHSS: National Institutes of Health Stroke Scale, rtPA: Recombinant tissue plasminogen activator