Table 3.

Unadjusted analysis of admission serum direct bilirubin versus severe stroke (National Institutes of Health Stroke Scale score >12)

Variable	Beta estimate	Odds ratio	Confidence interval	P value
Age	0.002	1.002	0.987–1.017	.772
Female	0.312	1.366	0.876–2.130	.169
Serum glucose (per 1-mg/dL increase)	0.006	1.006	1.002–1.010	.002
Nonsmoker*	—	—	—	—
Ex-smoker	−0.377	0.686	0.406–1.157	.158
Current smoker	0.300	1.349	0.689–2.642	.382
Prior antithrombotic use	−0.632	0.531	0.333–0.849	.008
Prior statin use	−0.199	0.820	0.485–1.386	.458
History of hypertension	0.624	1.866	1.118–3.115	.017
History of diabetes	−0.315	0.730	0.411–1.296	.283
History of hyperlipidemia	−0.142	0.868	0.520–1.447	.587
History of atrial fibrillation	0.928	2.530	1.519–4.215	<.001
Premorbid modified Rankin score (< 1)*	—	—	—	—
Premorbid modified Rankin score = 1	−0.174	0.840	0.454–1.556	.580
Premorbid modified Rankin score = 2	−0.670	0.512	0.156–1.676	.268
Premorbid modified Rankin score = 3	−0.571	0.565	0.151–2.117	.397
Premorbid modified Rankin score = 4–5	1.517	4.556	1.492–13.916	.008
Serum direct bilirubin (≤mg/dL)*	—	—	—	—
Serum direct bilirubin (0.2 mg/dL)	0.323	1.382	0.863–2.213	.179
Serum direct bilirubin (0.3 mg/dL)	0.250	1.284	0.619–2.665	.502
Serum direct bilirubin (≥mg/dL)	1.024	2.785	1.25–6.202	.012

^*Reference group