Efficacy and safety of endoscopic retrograde cholangiopancreatography in the treatment of bile duct stones

Table 1 Baseline characteristics of the common bile duct exploration and endoscopic retrograde cholangiopancreatography groups, n (%)

Category	CBDE group, N = 50	ERCP group, N = 53	χ2/t	P value
Age, years	44.50 ± 9.41	43.25 ± 9.46	0.672	0.503
Gender			0.418	0.518
Male	28 (56.00)	33 (62.26)
Female	22 (44.00)	20 (37.74)
Disease duration, years	3.86 ± 1.44	4.42 ± 1.93	1.662	0.100
Stone diameter, cm	1.87 ± 0.84	1.59 ± 0.68	1.864	0.065
Stone number	3.54 ± 1.16	3.92 ± 1.31	1.555	0.123

CBDE: Common bile duct exploration; ERCP: Endoscopic retrograde cholangiopancreatography.