Influence of night duty on endoscopic therapy for bile duct stones

Table 4 Comparison of treatment outcomes n (%)

	ND Group	DD Group	P value
	(n = 34)	(n = 99)
Procedure time (min), mean ± SD	71.5 ± 44.7	54.2 ± 28.8	0.043
Rate of stone removal by first endoscopist	13 (38.2)	52 (52.5)	0.150
Procedure success rate by first endoscopist	18 (52.9)	57 (57.6)	0.638
Rate of final stone removal	24 (70.6)	66 (66.7)	0.67
Final procedure success rate	33 (97.1)	90 (90.9)	0.22
Complications	1 (2.9)	11 (11.1)	0.136
Pancreatitis	1	6
Duodenal bleeding		2
Decreased blood pressure		1
Hypoxia		2
Hospitalization after procedure (d), mean ± SD	7.1 ± 7.6	6.6 ± 6.6	0.715

ND: Night duty; DD: Day duty; Procedure success rate: Removal of stones or biliary stenting.