Table 1.

Basic data of 186 patients with cholelithiasis and cholecystitis who underwent cholecystectomy (mean ± SD)

Cholecystectomy	CBD stones	Patients (M/F)	Age (yr)	ERCP	MRCP	IOC
Urgent	Yes	80 (43/37)	63.8 ± 16.2	47	3	61
	No	74 (33/41)	57.9 ± 15.9	42	0	34
Elective	Yes	10 (7/3)	59.8 ± 11.1	9	0	6
	No	22 (9/13)	58.2 ± 15.4	16	0	8
	Total	186	60.6 ± 15.9	114	3	109

CBD: Common bile duct; ERCP: Endoscopic retrograde cholangiopancreatography; MRCP: Magnetic resonance cholangiopancreatography; IOC: Intra-operative cholangiography.