Table 2 Model performance on test set data for predicting 30-day major adverse limb event or death following lower extremity open revascularization using pre-operative features.

From: Predicting outcomes following lower extremity open revascularization using machine learning

 

AUROC (95% CI)

Accuracy (95% CI)

Sensitivity

Specificity

PPV

NPV

XGBoost

0.93 (0.92–0.94)

0.86 (0.85–0.87)

0.84

0.89

0.90

0.83

Random forest

0.92 (0.91–0.93)

0.85 (0.84–0.86)

0.84

0.86

0.86

0.83

Naïve bayes

0.87 (0.86–0.88)

0.85 (0.84–0.86)

0.83

0.85

0.86

0.82

RBF SVM

0.85 (0.84–0.86)

0.77 (0.75–0.79)

0.75

0.80

0.83

0.71

MLP ANN

0.80 (0.78–0.82)

0.73 (0.70–0.75)

0.71

0.75

0.79

0.69

Logistic regression

0.63 (0.61–0.65)

0.58 (0.56–0.60)

0.55

0.71

0.60

0.56

  1. Abbreviations: XGBoost (Extreme Gradient Boosting), AUROC (area under the receiver operating characteristic curve), CI (confidence interval), PPV (positive predictive value), NPV (negative predictive value), RBF SVM (radial basis function support vector machine), MLP ANN (multilayer perceptron artificial neural network).