Table 4.

Cox hazard analysis for cerebrovascular accidents in the entire cohort

Risk factors	Univariate			Multivariate
	Hazard ratio	95% confidence interval	P value	Hazard ratio	95% confidence interval	P value
Age (> 50)	0.81	0.33–1.98	0.64	0.78	0.29–2.17	0.64
Sex (male)	0.84	0.34–2.07	0.71
Small BSA (< 1.5 m2)	1.91	0.80–4.54	0.15
Delayed heparinization (> 24 h)	2.91	1.02–8.26	0.045	2.9	0.98–8.56	0.053
Preoperative small LVDs (< 50 mm)	2.98	1.25–7.12	0.014	2.36	0.76–7.35	0.14
Preoperative inflammation (WBC > 10,000/mm3)	1.12	0.26–4.79	0.88
Preoperative hypoalbuminemia (< 3.0 g/dl)	1.68	0.49–5.71	0.41
Long operation time (> 300 min)	3.45	1.45–8.22	0.0053
Bridging with extracorporeal VAD	3.38	1.46–7.81	0.0044	4.27	1.43–12.8	0.0095
HeartMate II implantation	4.1	0.54–30.7	0.17	3.74	0.48–29.3	0.21

LVDs left ventricular end-systolic diameter, WBC white blood cell, VAD ventricular assist device, BSA body surface area