Research use only — not a medical device. Developed and externally validated on retrospective cohorts; not calibrated for, or approved for, clinical decision-making on individual patients.

A1 Risicocalculator

Peri-operative risk scoring for the colorectal cohort. Runs the five saved model bundles entirely in your browser — no patient data is transmitted.

Development

External

Predictors32

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Model

Apply recalibration Platt recalibration fitted on the held-out internal split (n=483). Leave on — the uncalibrated elastic net, SVM and forest return risks 4–6× too high.

Operating points