. 2017 Oct 7;23(37):6884–6893. doi: 10.3748/wjg.v23.i37.6884

Table 6.

Endoscopic drainage (endoscopic retrograde cholangiopancreatography and procedures/patients) according to initial pancreatography changes (n = 122)

	Stones,	Strictures,	Strictures + stones, n = 20	P value
	n = 17	n = 85	Strictures + stones, n = 20	P value
ERCP/patient¹	2 (1-3)	2 (1-2)^c	2 (2-3)^c	< 0.001
Procedures/patient¹	3 (2-5)^a	2 (1-3)^c	4 (3-4)^a ^c	< 0.001
Only one procedure	0	23	0	< 0.001
Multiple procedures	17	62	20	< 0.001
Clinical success	13	69	19	0.221

Data are presented as median (IQR).

P < 0.05, vs the groups with Stones to the group Strictures + Stones had a;

P < 0.05, vs the groups with Strictures to the group Strictures + Stones had a. IQR: Interquartile range; ERCP: Endoscopic retrograde cholangiopancreatography.