Rates of PEP, demographics of patients and diclofenac use in each group
| Group 1 (n=444) (No NSAIDs) | Group 2 (n=539) (Selective NSAIDs) | Group 3 (n=335) (Unselected NSAIDs) | |
| Age | 70.2 (21–99) | 71.1 (19–99) | 70.1 (22–98) |
| Sex | |||
| Female | 229 (51.6%) | 299 (55.4%) | 164 (49.0%) |
| Male | 215 (48.4%) | 240 (44.5%) | 171 (51.0%) |
| Diclofenac use | 0 (0%) | 72 (13.5%) | 288 (86.2%) |
| Incidence of PEP | 36 (8.1%) | 16 (3.0%) | 12 (3.6%) |
NSAID, non-steroidal anti-inflammatory drugs; PEP, post-ERCP pancreatitis.