Risk factors for bile leakage after laparoscopic common bile duct exploration in older patients with choledocholithiasis

Table 4 Effect of different bile culture bacterial types on bile leakage in older patients with common bile duct stones after laparoscopic common bile duct exploration

Bacteria	Non-bile leakage	Bile leakage	P value	Logistic regression analysis (P value, OR, 95%CI)
Enterococcus faecalis
Yes	3	4	< 0.05	< 0.05, 7.857, 1.321-46.438
No	53	7	-	-
Escherichia coli
Yes	5	1	1.000	-
No	43	10	-	-
Enterococcus faecium
Yes	4	1	1.000	-
No	44	10	-	-
Klebsiella pneumoniae
Yes	2	2	0.316	-
No	46	9	-	-
Enterococcus gallinarum
Yes	3	1	1.000	-
No	45	10	-	-
Pseudomonas aeruginosa1
Yes	0	2	< 0.05	NA, NA, NA
No	48	9	-	-
Aeromonas caviae
Yes	0	1	0.186	-
No	48	10	-	-
Monomicrobia	41	8	0.356	-
Polymicrobial	5	3	-	-

¹Test not performed due to few events and no events in one arm.

NA: Not available; OR: Odds ratio; CI: Confidence interval.