Comparison mode
Compare validated models side by side
See the population, outcome, time horizon, inputs, validation and limitations of related tools. No model is universally “correct” — choose the one validated for your patient.
Cardiovascular prevention models
These models predict different outcomes in different populations over different horizons. Choose the model validated for your patient's population — they are not interchangeable.
Chest pain risk scores
HEART was built for undifferentiated ED chest pain; TIMI and GRACE were derived in confirmed ACS.
Pulmonary embolism tools
PERC and Wells address diagnosis (whether to test); PESI and sPESI address prognosis after PE is confirmed.
Cervical spine imaging rules
Both rules aim to avoid unnecessary imaging after trauma; in the 2003 head-to-head study the Canadian C-Spine Rule was more sensitive and specific than NEXUS.
Kidney function equations
CKD-EPI estimates GFR for staging; Cockcroft-Gault estimates creatinine clearance for drug dosing; KFRE predicts kidney failure.