Table 3.

Association between 25 and 50 mg dose of rectal diclofenac and post-ERCP hyperamylasaemia

	OR	(95% CI)	p Value
Post-ERCP hyperamylasaemia
Univariate	0.39	(0.20 to 0.75)	0.005
Multivariate
Model 1	0.44	(0.21 to 0.92)	0.028
Model 2	0.35	(0.15 to 0.84)	0.018

ORs were calculated for the 50 mg group referring to the 25 mg group.

Model 1: Adjusted for sex, age and BMI.

Model 2: Adjusted for sex, age, BMI, type of operator, difficult cannulation and procedures for pancreatic duct.

BMI, body mass index; ERCP, endoscopic retrograde cholangiopancreatography.