Table 4: Multivariate analysis for risk factors related to surgical site infection complication

	Regression coefficient	OR	p	Confidence interval 95%
Age
<65	-0.709	0.492	0.350	0.111-2.176
≥65
Hemoglobin
<10 g/dl	2.293	0.101	0.014	0.016-0.628
≥10 g/dl
Pancreatic parenchyma
Soften	1.523	4.588	0.056	0.963-21.868
Harden
Biliary drainage
Yes	-1.182	0.307	0.111	0.072-1.313
No