| Source of infection | Number (%) |
|---|---|
| Appendicitis | 1553 (34.2) |
| Cholecystitis | 837 (18.5) |
| Post-operative | 387 (8.5) |
| Colonic non-diverticular perforation | 269 (5.9) |
| Gastro-duodenal perforations | 498 (11) |
| Diverticulitis | 234 (5.2) |
| Small bowel perforation | 243 (5.4) |
| Others | 348 (7.7) |
| PID | 50 (1.1) |
| Post traumatic perforation | 114 (2.5) |
| Total | 4553 (100) |