Table 2.

Outcomes of stent placement during endoscopic retrograde cholangiopancreatography (ERCP) in 78 patients.

	5-Fr group	3-Fr group	% difference (95 %CL)
Patients randomly allocated to stent type	38*	40†
Spontaneous passage confirmed at 2 weeks	26 (68.4 %)	30 (75.0 %)	− 6.6 % (− 26.5 %, 13.4 %)
Non-passage confirmed at 2 weeks	4 (10.5 %)	4 (10.0 %)	0.5 % (− 13.0 %, 14.0 %)
Late spontaneous passage	5 (13.2 %)	2 (5.0 %)	8.2 % (− 4.5 %, 20.9 %)
Early stent removal	3 (7.9 %)	3 (7.5 %)	0.4 % (− 11.4 %, 12.2 %)

^*Two patients crossed over to a 3-Fr stent at the discretion of the endoscopist.

^† One stent dislodged during ERCP and was not replaced, and seven patients crossed over to a 5-Fr stent at the discretion of the endoscopist.