Efficacy of modified pancreatic duct stent drainage during endoscopic retrograde cholangiopancreatography for common bile duct stones

Table 4 Comparison of complication occurrence in three groups of patients

	Modified pancreatic duct stent drainage group (n = 59)	Nasobiliary drainage group (n = 58)	Standard biliary drainage group (n = 58)	χ2 value	P value
Complications	14 (23.73)	18 (31.03)	21 (36.21)	2.180	0.336
Pancreatitis	1 (1.69)	0 (0.00)	0 (0.00)
Cholangitis	0 (0.00)	1 (1.72)	0 (0.00)
Hemorrhage	0 (0.00)	2 (3.45)	2 (3.45)
Perforation	1 (1.69)	0 (0.00)	1 (1.72)
Wound infection	0 (0.00)	0 (0.00)	1 (1.72)
Hyperamylasemia	12 (20.34)	15 (25.86)	17 (29.31)
Death	0 (0.00)	0 (0.00)	0 (0.00)

The number of patients and percentage (%).