Hepatectomy with primary closure of common bile duct for hepatolithiasis combined with choledocholithiasis

Table 2 Postoperative complications, hospital stay and costs n (%)

Complication	Drainage group (n = 48)	Non-drainage group (n = 43)	P value
Residual stones	7 (14.6)	4 (9.3)	0.329
Bile leakage	7 (14.6)	6 (13.9)	0.586
Pancreatitis	2 (4.2)	2 (4.7)	0.649
Cholangitis	13 (27.1)	9 (20.9)	0.331
T-tube dislocation	1 (2.1)	0	0.527
Postoperative hospital stay (d)	15.4 ± 2.1	11.2 ± 2.8	0.000
Postoperative costs (yuan)	32 933.3 ± 6235.1	29 325.6 ± 5668.2	0.005

Postoperative hospital stay and costs were tested by Student’s t test. Other variables were tested by Fisher’s exact test or χ² test.