Machine Learning Models for Survival and Neurological Outcome Prediction of Out-of-Hospital Cardiac Arrest Patients

Table 2

Rank of parameter importance after stepwise parameter selection.

Rank	LR	SVM	XGB
1st	PCI	Troponin I	Troponin I
2nd	Diabetes mellitus	CCI	Total epinephrine dose
3rd	Hemoglobin	Dementia	Heart failure
4th	Troponin I	Diabetes ketoacidosis	PCI
5th	Dementia	PCI	Amiodarone use
6th	CCI	Norepinephrine use	Calcium use
7th	Norepinephrine use	ECMO	Dementia
8th	Liver cirrhosis	Pulmonary embolism	Sodium bicarbonate use
9th	Hypokalemia	Amiodarone use	Band neutrophil
10th	Tumor metastasis	Pneumothorax	Malignancy
11th		Tumor metastasis	Acute myocardial infarction
12th		Acidosis

LR: logistic regression; SVM: support vector machine; XGB: extreme gradient boosting; PCI: percutaneous coronary intervention; CCI: Charlson comorbidity index; ECMO: extracorporeal membrane oxygenation.