Endoscopic retrograde cholangiopancreatography, endoscopic papillary balloon dilation, and laparoscopic hepatectomy for intra- and extrahepatic bile duct stones

Table 1 Comparative analysis of general information

Data	Control group (n = 55)	Observation group (n = 59)	χ2/t	P value
Sex, n (%)			0.477	0.490
Male	31 (56.36)	37 (62.71)
Female	24 (43.64)	22 (37.29)
Age (year)	64.36 ± 7.08	65.46 ± 6.65	0.855	0.394
Body mass (kg)	55.91 ± 7.01	58.07 ± 8.84	1.439	0.153
Disease course (year)	2.82 ± 0.88	2.93 ± 1.03	0.611	0.543
Time from onset to operation (day)	3.04 ± 0.86	3.14 ± 0.99	0.574	0.567