Table 3.

Univariate and multivariate analyses of associated factors of multidrug-resistant gram-negative bacteria infection.

	Univariate analysis		Multivariate analysis
Factors	HR (95% CI)	P-value	HR (95% CI)	P-value
Sex, male	1.16 (0.63–2.13)	.642
Exposure to third-generation cephalosporins within 3 mo before LT	2.40 (1.30–4.43)	.005∗	2.20 (1.13–4.30)	.021∗
Operation time (h)	1.22 (1.07–1.40)	.003∗	1.20 (1.05–1.38)	.008∗
Cold ischemic time	1.00 (0.99–1.00)	.888
Length of ICU stay (d)	1.04 (1.02–1.06)	<.001∗	1.03 (1.00–1.06)	.049∗
Re-operation	2.13 (1.14–3.98)	.017∗	1.27 (0.60–2.66)	.532
Postoperative surgical intervention	1.74 (0.94–3.23)
Bile leakage	2.10 (1.11–4.01)	.023∗	1.20 (0.60–2.45)	.600
CMV reactivation	3.64 (1.60–8.32)	.002∗	0.98 (0.33–2.92)	.974
EBV reactivation	1.18 (0.29–4.90)	.816
Acute graft rejection	0.74 (0.31–1.75)	.491