SORT (Surgical Outcome Risk Tool, 30-day Mortality)
Surgical Outcome Risk Tool (Protopapa 2014): ASA class, urgency, age, high-risk specialty, major/complex surgery, and cancer give an estimated 30-day postoperative mortality.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- ASA physical status
- III (+1.411)
- Urgency
- Urgent (+1.657)
- Age
- 70 years
- High-risk surgical specialty
- Yes
- Major or complex (xmajor) surgery
- Yes
- Cancer
- Yes
Result: SORT 14.67% — estimated 30-day postoperative mortality.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Output
- Predicted 30-day mortality = 1/(1+e^−logit). A preoperative estimate from routinely available variables; decision support, not a surgical order.
What you enter
- ASA physical status
- Urgency
- Age
- High-risk surgical specialty
- Major or complex (xmajor) surgery
- Cancer
How this is calculated
- Model
- logit = −7.366 + ASA III/IV/V (1.411/2.388/4.081) + urgency expedited/urgent/immediate (1.236/1.657/2.452) + high-risk 0.712 + major/complex 0.381 + cancer 0.667 + age 65–79/≥80 (0.777/1.591).
Protopapa KL, Simpson JC, Smith NCE, Moonesinghe SR. Development and validation of the Surgical Outcome Risk Tool (SORT). Br J Surg. 2014;101(13):1774-1783. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.