| Criteria | Point Value |
|---|---|
| Clinical condition at the admission | |
| Severe sepsis (acute organ dysfunction) at the admission | 3 |
| Septic shock (acute circulatory failure characterized by persistent arterial hypotension. It always requires vasopressor agents) at the admission | 5 |
| Setting of acquisition | |
| Healthcare associated infection | 2 |
| Origin of the IAIs | |
| Colonic non-diverticular perforation peritonitis | 2 |
| Small bowel perforation peritonitis | 3 |
| Diverticular diffuse peritonitis | 2 |
| Post-operative diffuse peritonitis | 2 |
| Delay in source control | |
| Delayed initial intervention [Preoperative duration of peritonitis (localized or diffuse) > 24 h)] | 3 |
| Risk factors | |
| Age>70 | 2 |
| Immunosuppression (chronic glucocorticoids, immunosuppresant agents, chemotherapy, lymphatic diseases, virus) | 3 |
The overall mortality was 0.63% for those who had a score of 0-3, 6.3% for those who had a score of 4-6, 41.7% for those who had a score of ≥ 7. In patients who had a score of ≥ 9 the mortality rate was 55.5%, those who had a score of ≥ 11 the mortality rate was 68.2% and those who had a score ≥ 13 the mortality rate was 80.9%.
