Table 3.

Multiple logistic regression and reverse multivariate logistic regression analyses to identify factors associated with fewer than six cannulation attempts

Variable	OR	95% CI	P value
Multiple logistic regression analysis
Patient age (years)	0.98	0.95 to 1.01	0.106
Patient gender: male vs female	1.39	0.57 to 3.40	0.463
Race: other vs white	0.95	0.37 to 2.45	0.909
ASGE grade of procedure difficulty
2 vs 1	1.70	0.57 to 5.04	0.338
3 vs 1	1.27	0.17 to 9.76	0.816
4 vs 1	1.09	0.12 to 10.1	0.939
Procedure type: biliary vs non-biliary interventions	0.52	0.076 to 3.55	0.505
Type of duodenoscope: single-use vs reusable	3.58	1.44 to 8.94	0.006
Reverse multivariate logistic regression analysis
Type of duodenoscope: single-use vs reusable	3.00	1.27 to 7.07	0.012

ASGE, American Society for Gastrointestinal Endoscopy.;