Table 1: Baseline characteristics and medical history in opium-addicted and non-addicted patients with SOD and undergoing ERCP.

Characteristics Opium addicted
( )
Non-addicted
( )
value

Male gender8 (100)48 (43.6)0.002
Age (years) 0.735
Diabetes mellitus0 (0.0)15 (13.5)0.594
Hypertension1 (12.5)28 (25.2)0.678
Coronary artery disease1 (12.5)8 (7.2)0.478
Cigarette smoking4 (50.0)11 (9.9)0.009
Alcohol use0 (0.0)5 (4.5)0.999
Pre-ERCP2 (25.0)13 (11.7)0.265
Biliary stones1 (12.5)8 (7.2)0.478
Cirrhosis0 (0.0)1 (0.9)0.999
Pancreatitis0 (0.0)4 (3.6)0.999
Cancer of pancreas1 (12.5)1 (0.9)0.130