Table 4.

Multivariate analysis of 182 patients (hepatectomy: n = 23; biliary repair: n = 159) for whom data on all the variables of interest (hepatic artery injury, portal vein injury and Strasberg E4 or E5 injury) were available

Factors		P-value	Hepatectomy
			OR	95% CI for OR
Hepatic artery injury	Yes vs. no	<0.001	7.7	2.6–22.4
Portal vein injury	Yes vs. no	0.1	6.9	0.6–75.7
Strasberg E4 or E5 injury	Yes vs. no	0.003	5.7	1.8–17.9
Complex injury
No hepatic artery, no Strasberg E4 or E5 injury			1.0	–
Isolated artery injury		<0.001	14.9	4.3–51.6
Isolated Strasberg E4 or E5 injury		<0.001	11.8	2.9–47.2
Artery + Strasberg E4 or E5 injury		<0.001	43.3	8.0–234.2

A separate logistic regression model was used to evaluate the independent effect of complex injury, (hepatic artery injury or Strasberg E4 or E5 injury, or both), in comparison with the group with neither hepatic artery nor Strasberg E4 or E5 injury

OR, odds ratio; 95% CI, 95% confidence interval