Impact of a Novel Oblique-Tip Papillotome for Biliary Cannulation during ERCP: A Nonrandomized Coarsened Exact Matching Study

Table 4

Comparison of cannulation outcomes in the OT-WGC and ST-WGC groups by coarsened exact matching.

	OT-WGC ()	ST-WGC ()	OR or coefficient (95% CI)		Statistical method
Number of unintended pancreatic access events			1.80 (0.924-3.496)	0.084	Ordinal logistic regression
Biliary cannulation time (seconds)			-145.9 (-337.064-45.123)	0.133	Linear regression
Frequency of rescue cannulation (%)	21.3% (16/75)	44.1% (32/73)	0.34 (0.167-0.706)	0.004	Logistic regression
Successful biliary cannulation rate (%)	100% (75/75)	80.8% (59/73)	N/A	0.002	Chi-square
Incidence of PEP (%)	4% (3/75)	6.2% (4.5/73)	0.63 (0.141-2.817)	0.546	Logistic regression