Retrospective Cohort Study
Copyright ©The Author(s) 2020.
World J Gastrointest Oncol. Dec 15, 2020; 12(12): 1381-1393
Published online Dec 15, 2020. doi: 10.4251/wjgo.v12.i12.1381
Figure 1
Figure 1 Case selection flow chart for the one million nationwide representative database. ES: Endoscopic sphincterotomy; EPBD: Endoscopic papillary balloon dilatation; NHIRD: National Health Insurance Research Database.
Figure 2
Figure 2 Cholangiocarcinoma cases diagnosed during different follow-up periods in the endoscopic sphincterotomy/endoscopic papillary balloon dilatation group, endoscopic sphincterotomy/endoscopic papillary balloon dilatation and cholecystectomy group, no intervention group, and normal population. ES: Endoscopic sphincterotomy; EPBD: Endoscopic papillary balloon dilatation; CCY: Cholecystectomy.
Figure 3
Figure 3 Cumulative subsequent cholangiocarcinoma risk in the endoscopic sphincterotomy/endoscopic papillary balloon dilatation group, endoscopic sphincterotomy/endoscopic papillary balloon dilatation and cholecystectomy group, no intervention group, and normal population (The cases of cholangiocarcinoma within 18 mo after index admission were excluded). ES: Endoscopic sphincterotomy; EPBD: Endoscopic papillary balloon dilatation; CCY: Cholecystectomy.