Sphincter of Oddi laxity: An important factor in hepatolithiasis

Table 2 Characteristics of patients in Groups I and II

	Group I	Group II
Number of patients	45	53
Male/female	18/27	17/36
Mean age (yr)	52.8	52.8
Mean age of first onset (yr)	41.9	47.8
Biliary visualization rate during duodenography	42.2%	0%
Mean follow-up period (mo)	38.4	41.9
Simple IHL/IHL with choledocholithiasis	15/30	14/39
Recurrence rate	22.2%	11.3%
Mean number of operations	2.07	1.21
Number of patients with 1 operation	22	45
Number of patients with 2 operations	12	7
Number of patients with 3 operations	7	0
Number of patients with 4 operations	1	0
Number of patients with 5 operations	0	1
Number of patients with 6 operations	2	0
Number of patients with 11 operations	1	0
Number of patients with simple choledocholithotomy and T-tube drainage	14	21
Number of patients with simple hepatectomy	7	13
Number of patients with choledocholithotomy, T-tube drainage and hepatectomy	18	17
Number of patients with simple choledochojejunostomy	4	1
Number of patients with choledochojejunostomy and hepatectomy	2	1