Risk factors for preoperative carcinogenesis of bile duct cysts in adults

Table 1 Demographic data, symptoms, and laboratory test findings for patients with bile duct cyst

	Overall cohort (n = 109)	Group A (n = 99)	Group B (n = 10)	P value
Male/female (n)	19/90	19/80	0/10	0.277
Age at symptom onset (yr)	34.6 ± 15.5	34.7 ± 15.4	34.0 ± 16.5	0.892
Age at admission (yr)	40.4 ± 15.0	40.6 ± 15.0	38.1 ± 16.0	0.611
BMI (kg/m2)	22.0 ± 3.3	22.1 ± 3.4	21.6 ± 2.2	0.634
Smoking (n)	7	7	0	1.000
Abdominal pain (n)	90	82	8	1.000
Fever (n)	29	26	3	1.000
Jaundice (n)	14	11	3	0.228
CA19-9 > 34 U/mL (n)	9	8	1	0.594
CEA > 5 ng/mL (n)	1	0	1	0.092
APBD (n)	55	51	4	0.717

BMI: Body mass index; CA19-9: Carbohydrate antigen 19-9; CEA: Carcinoembryonic antigen; APBD: Abnormal pancreatic biliary duct.