Perioperative medicine & outcomes
Surgical Outcome Risk Tool (SORT) to predict 30-day postoperative mortality in a mixed surgical population in Swedish tertiary hospitals
Authors' conclusion
The estimates of the original the SORT for prediction of 30-day mortality were valid and reliable in a mixed-case surgical population in a non-UK European setting.
Study context
- Population
- Adults (≥18 years), ASA-PS I–V, non-cardiac surgery at four Swedish tertiary hospitals, November 2015 to February 2016; surgery under local anaesthesia excludedvalidation cohort
- Participants
- 17,965 adults
- Outcome
- 30-day mortality (SORT discrimination by AUROC and calibration)
- Follow-up
- 30 days
Methodological detailsmulticentre, four tertiary hospitals, sensitivity analysis in high-risk subgroup
- Multicentre
- Four tertiary hospitals
- Sensitivity analysis in high-risk subgroup
Performance
As reported in the abstract
Prediction of 30-day mortality
| Test or model | Area under the receiver operating curve (AUROC) |
|---|---|
| SORT | 0.91 (95 per cent c.i. 0.89 to 0.92) |
SORT
Area under the receiver operating curve (AUROC)0.91 (95 per cent c.i. 0.89 to 0.92)
- 30-day mortality rate
- 1.6 per cent
Further findings
| Outcome | Values |
|---|---|
| Prediction of 30-day mortality, high-risk subgroup (sensitivity analysis) | SORT AUROC 0.79 (0.74 to 0.83) |
- Prediction of 30-day mortality, high-risk subgroup (sensitivity analysis) — 30-day mortality rate
- 5.6 per cent
- Prediction of 30-day mortality, high-risk subgroup (sensitivity analysis): 1807 patients
Prediction of 30-day mortality, high-risk subgroup (sensitivity analysis)
- Calibration remained good
Original publication
Surgical Outcome Risk Tool (SORT) to predict 30-day postoperative mortality in a mixed surgical population in Swedish tertiary hospitals. Br J Surg. Published 10 March 2023. doi:10.
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