Table 1. The positive rate of bacterial culture in bile from different groups at different time points.

Groups/time	Post 4w	Post 12w	Post 24w	Post 48w
Control	0/6 (0)	2/6 (33.33%)	3/6 (50%)	6/6 (100%)
AgNPs	0/6 (0)	0/6 (0)	0/6 (0)	0/6 (0)
P value	1.00	0.4545	0.1818	0.0022

Note: Fisher’s exact test was used for statistical analysis.