Risk factors for bile leakage after laparoscopic common bile duct exploration in older patients with choledocholithiasis

Table 1 Demographic data and clinical characteristics of older patients with common bile duct stones

Characteristic	Non-bile leakage	Bile leakage	P value
Sex
Male	26	5	1.000
Female	32	7	-
Age (years), mean ± SD	77.10 ± 5.483	79.09 ± 6.788	0.278
Diabetes mellitus
Yes	10	5	0.136
No	48	7	-
Hypertension
Yes	33	9	0.400
No	25	3	-
Pulmonary disease
Yes	16	6	0.128
No	42	6	-
Heart disease
Yes	9	3	0.709
No	49	9	-
Cerebrovascular disease
Yes	9	3	0.709
No	49	9	-
ASA score
II	44	9	0.433
III	13	2	-
IV	1	1	-

ASA: American Society of Anesthesiologists.