Table 2.
CR-POSSUM scoring system.
| Scoring | 1 | 2 | 3 | 4 | 8 |
|---|---|---|---|---|---|
| Physiological Score | |||||
| Age group | ≤60 | 61–70 | 71–80 | ≥81 | |
| Cardiac failure | None or mild | moderate | severe | ||
| Syst. RR (mmHg) | 100–170 | >170/90–99 | <90 | ||
| Pulse | 40–100 | 101–120 | >120/<40 | ||
| Urea (mmol/L) | ≤10 | 10.1–15 | >15 | ||
| Hemoglobin (g/dL) | 13–16 | 10–12.9/16.1–18 | <10/>18 | ||
| Operative Severity Score | |||||
| Operative Severity * | Minor | Intermediate | Major | Complex major | |
| Peritoneal soiling | None/serous fluid | Local pus | Free Pus or feces | ||
| Operative Urgency | Elective | Urgent | Emergency | ||
| Cancer staging | No cancer or Dukes’ A–B |
Dukes’ C | Dukes’ D |
* Major: right/left/extended right/extended left hemicolectomy, sigmoid resection, transverse colectomy; complex major: (lower) anterior resection, subtotal or total colectomy, abdominoperineal rectum resection. Minor or intermediate procedures, like small proctologic procedures and transanal resection of tumors, were excluded from our study.