Clinical and microbiological characteristics of patients with biliary disease

Table 3 Distribution of bacteria identified in 738 bile samples with positive bile culture based on the different diseases caused by them

Bacteria	Benign diseases (n = 554) (%)	Malignant diseases (n = 184) (%)	Total (n = 738) (%)	P value
Escherichia coli	231 (41.7)	81 (44.02)	312 (42.28)	0.580
Enterococcus faecium	39 (7.04)	12 (6.52)	51 (6.91)	0.810
Klebsiella pneumoniae	55 (9.93)	30 (16.30)	85 (11.52)	0.019a
Pseudomonas aeruginosa	55 (9.93)	19 (10.33)	74 (10.03)	0.876
Proteus mirabilis	14 (2.53)	7 (3.8)	21 (2.85)	0.367
Staphylococcus	40 (7.22)	21 (11.41)	61 (8.27)	0.074

Main bacteria were identified in 738 bile samples from 738 patients; 554 patients with benign diseases and 184 with malignant diseases. Significant differences were calculated using the χ² test.

^aP < 0.05.