|
Table 2: Variables studied by group. |
|||
|
Variable |
Group 1 (N = 39) |
Group 2 (N = 48) |
p |
|
Age (years) |
47.9 ± 14.9 |
45 ± 16.4 |
0.700* |
|
Cannulation attempts |
4.1 ± 2.5 |
3.0 ± 2.0 |
0.020‡ |
|
ERCP time (minutes) |
38.7 ± 6.1 |
38.8 ± 6.7 |
0.100* |
|
Bile duct size (mm) |
5.2 ± 1.2 |
11.4 ± 5.4 |
> 0.001‡ |
|
Total bilirubin (mg/dl) |
3.1 ± 2.1 |
4.0 ± 2.5 |
0.200* |
|
Direct bilirubin (mg/dl) |
1.8 ± 1.3 |
2.4 ± 1.7 |
0.090* |
|
Indirect bilirubin (mg/dl) |
1.3 ± 0.9 |
1.6 ± 0.9 |
0.300‡ |
|
ALT (U/l) |
207.1 ± 194.4 |
291.9 ± 248.1 |
0.010‡ |
|
AST (U/l) |
181.6 ± 224.0 |
214 ± 190.2 |
0.500‡ |
|
Pre-ERCP amylase (U/l) |
285.7 ± 572.1 |
169.7 ± 312.0 |
0.400‡ |
|
Difficult cannulation (n, %) |
19 (48.7%) |
17 (35.4%) |
0.200§ |
|
Pancreatitis on admission (n, %) |
6 (15.4%) |
6 (12.5%) |
0.700§ |
|
Post-ERCP pancreatitis (n, %) |
4 (10.3%) |
7 (14.6%) |
0.800§ |
|
* Student’s t test. ‡ Mann-Whitney U test. § χ2 or Fisher’s exact test if applicable. Source: electronic file HGZ No. 35-IMSS. |
|||