Table 3.

the comparison of treatment in both groups (_x±s)

Indicators	ERCP (n = 35)	LCBDE (n = 35)	t/x2	p
The Stone diameter	0.86 ± 0.32	1.87 ± 0.56	0.278	0.010
The stone-free rate {n(%)}	19(54.3%)	35(100%)	1.549	0.010
Operation time(min)	129.62 ± 16.27	152.26 ± 22.38	5.537	< 0.001
success of the first operations(rate)	18(51.4%)	35(100%)	1.275	0.001
Recovery time of gastrointestinal function (h)	38.56 ± 5.31	33.42 ± 4.38	11.090	0.023
hospitalization time(d)	12.55 ± 2.64	6.78 ± 2.84	8.913	0.010
hospitalization cost	2580.85 ± 1863.63	1524.21 ± 1272.36	2.682	0.010