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
Figure 1
The actuarial probability of patients remaining free of recurrence of symptomatic CBD stones during the follow-up after therapeutic ERCP. (a) The patients with PAD versus those without PAD; (b) the patients with type 1 PAD versus those with type 2 or type 3 PAD; (c) recurrence-free probability between the two groups who underwent previous cholecystectomy; (d) recurrence-free probability between the two groups with gall bladder in situ.
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