Dome vs tapered tip sphincterotomes in endoscopic retrograde cholangiopancreatography: A pilot study on cannulation success and postprocedural pancreatitis

Table 1 Baseline demographic and clinical characteristics of the study population, n (%)

Variables	Dome tip (n = 45)	Tapered tip (n = 45)	P value1
Age, year (median, min-max)	72 (32-91)	71 (32-92)	0.59
Age ≥ 65	30 (66.7)	26 (57.8)
Age < 65	15 (33.3)	19 (42.2)
Sex			0.12
Male	15 (33.3)	19 (42.2)
Female	30 (66.7)	26 (57.8)
BMI	24.06 ± 4.79	24.81 ± 4.03	0.81
BMI ≥ 25 kg/m2	12 (26.7)	21 (46.7)
BMI < 25 kg/m2	33 (73.3)	24 (53.3)
Indications (malignant/benign)			0.4
Malignant
Pancreatic cancer	3 (6.7)	2 (4.4)
Cholangiocarcinoma	5 (11.1)	5 (11.1)
Other cancers	3 (6.7)	0 (0.0)
Benign
Choledocholithiasis	32 (71.1)	34 (75.6)
Benign biliary stricture	2 (4.4)	4 (8.9)

¹P values were calculated using the t-test for continuous variables and χ² test for categorical variables.

BMI: Body mass index.