Research Article

Different Types of Periampullary Duodenal Diverticula Are Associated with Occurrence and Recurrence of Bile Duct Stones: A Case-Control Study from a Chinese Center

Table 1

Comparison of cholangiopancreatic disorders and technical success of ERCP according to the presence of PAD.

PAD
()
Control
()
Odds ratio [95% CI]

Median age (yr) (range)62 (23–90)61 (26–87)0.542
Gender: (%)
 Male83 (51.6)249 (51.6)1.000
 Female78 (48.4)234 (48.4)
Biliary disorders: (%)
 CBD and gall stones 10 (6.2)55 (11.4)0.068
 CBD stones only96 (59.6)169 (35.0)<0.0010.0082.09 [1.213–3.602]
 Gall stones only12 (7.5)46 (9.5)0.428
 Benign bile duct strictures 13 (8.1)71 (14.7)0.0310.1540.61 [0.311–1.203]
 Periampullary carcinoma11 (6.8)104 (21.5)<0.0010.0040.35 [0.174–0.710]
 Previous cholecystectomy63 (39.1)116 (24.0)<0.0010.7121.10 [0.653–1.867]
Pancreatic disorders: (%)
 Acute pancreatitis51 (31.7)125 (25.9)0.153
 Chronic pancreatitis5 (3.1)9 (1.9)0.349
Successful cannulation: (%)153 (95.0)444 (91.9)0.190
Complications: (%)
 Post-ERCP pancreatitis26 (16.1)61 (12.6)0.258
 Perforation2 (1.2)12 (2.5)0.533

Student’s -test for continuous variables and Pearson’s chi-square test for categorical variables.
The multivariate logistic regression model included variables which are confirmed to be statistically significant by univariate analysis as independent variables and PAD as dependent variable.
CBD: common bile duct; ERCP: endoscopic retrograde cholangiopancreatography.