Papillary fistulotomy vs conventional cannulation for endoscopic biliary access: A prospective randomized trial

Table 1 Patient characteristics and baseline laboratory tests

Variable	Group I, n = 51	Group II, n = 51	Total, n = 102	P value
Age in yr				0.3431
Mean ± σ	57.4 ± 19.3	60.9 ± 18.1	59.1 ± 18.7
Median (min; max)	56 (19; 91)	64 (22; 95)	58 (19; 95)
Sex, n (%)				> 0.9992
Female	33 (64.7)	33 (64.7)	66 (64.7)
Male	18 (35.3)	18 (35.3)	36 (35.3)
AST				0.680
Mean ± σ	116.3 ± 143.4	124.3 ± 168.3	120.1 ± 155.1
Median (min; max)	44 (8; 691)	60 (13; 762)	50 (8; 762)
ALT				0.873
Mean ± σ	163.6 ± 191.6	154.1 ± 169.3	159 ± 180.4
Median (min; max)	83 (9; 776)	104 (11; 662)	90 (9; 776)
AP				0.585
Mean ± σ	267.8 ± 329.7	301.9 ± 320.4	284.3 ± 323.9
Median (min; max)	153.5 (8; 1567)	173 (32; 1320)	162 (8; 1567)
GGT				0.821
Mean ± σ	532 ± 454.3	543.4 ± 578.2	537.5 ± 515.1
Median (min; max)	466.5 (39; 1684)	284 (11; 2269)	382 (11; 2269)
Total bilirubin				0.994
Mean ± σ	4.1 ± 4.9	5.3 ± 7.5	4.7 ± 6.3
Median (min; max)	2 (0.1; 23.4)	2.1 (0.2; 29.2)	2.1 (0.1; 29.2)
Direct bilirubin				0.683
Mean ± σ	3.6 ± 4.4	4.2 ± 6.3	3.9 ± 5.4
Median (min; max)	1.6 (0.1; 20.9)	1.1 (0.1; 22.4)	1.5 (0.1; 22.4)

¹Student’s t-test;

²Chi-square test, Mann-Whitney test. AST: Aspartate transaminase; ALT: Alanine transaminase; AP: Alkaline phosphatase; GGT: Gamma-glutamyl transpeptidase; σ: Standard deviation.