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Table 5 Top selected variables and their prediction performance

From: Prediction of adverse cardiac events in emergency department patients with chest pain using machine learning for variable selection

Selected variables for model building

AUC

AUC 95% CI

SBP

0.663

0.553 - 0.773

SBP, avHR

0.759

0.656 - 0.862

SBP, avHR, aRR

0.812

0.716 - 0.908

SBP, avHR, aRR, DBP

0.773

0.671 - 0.874

SBP, avHR, aRR, DBP, TI

0.763

0.660 - 0.865

SBP, avHR, aRR, DBP, TI, LF/HF

0.774

0.672 - 0.875

SBP, avHR, aRR, DBP, TI, LF/HF, HF norm

0.767

0.664 - 0.869

SBP, avHR, aRR, DBP, TI, LF/HF, HF norm, LF norm

0.768

0.666 - 0.870