
ACS National Surgical Quality Improvement Program (NSQIP) Surgical Risk Calculator
https://riskcalculator.facs.org/RiskCalculator/
Surgical Outcome Risk Tool (SORT)
Portsmouth Physiological and Operative Severity Score for the Enumeration of Mortality and Morbidity (P-POSSUM)
http://www.riskprediction.org.uk/index-pp.php
National Emergency Laparotomy Audit (NELA) Risk Calculator
https://data.nela.org.uk/riskcalculator/
Nottingham Hip Fracture Score
http://www.riskprediction.org.uk/index-nhfs.php
euroSCORE II
http://euroscore.org/calc.html
Subarachnoid Hemorrhage International Trialists (SAHIT)
Risk of mortality and unfavourable outcome for subarachnoid haemorrhage.
Modified Caprini risk assessment model for VTE in general surgical patients
Society of Thoracic Surgeons (STS) Short-Term Risk Calculator
https://www.sts.org/resources/risk-calculator
Bleeding Impacting Mortality after noncardiac Surgery (BIMS)
http://perioperativerisk.com/BIMS/
ARISCAT Score for Postoperative Pulmonary Complications (PPCs)
https://www.mdcalc.com/ariscat-score-postoperative-pulmonary-complications
Johns Hopkins Frailty Assessment Calculator