Table 4.

Comparisons of IL-6 levels of patients at different time points between two groups (ng/L).

Group	Cases	Before ERCP	3 h after ERCP	12 h after ERCP	24 h after ERCP
Control group	72	35.69±4.63	156.79±9.63*	193.83±12.36*	182.43±8.28*
Observation group	67	34.74±4.23	123.64±9.67*	148.62±11.75*	120.56±8.27*
P		0.210	<0.001	<0.001	<0.001

Compared with that before ERCP,

^*P<0.05.