Analyzing Receiver Operating Characteristic Curves with SAS

Using the ROC Curve to Evaluate Multivariable Prediction Models

8.1 Introduction

8.2 Liver Surgery Example

8.3 Resubstitution Estimate of the ROC Curve

8.4 Split-Sample Estimates of the ROC Curve

8.5 Cross-Validation Estimates of the ROC Curve

8.6 Bootstrap-Validated Estimates of the ROC Curve

8.1 Introduction

Our discussions so far have focused on a single predictor. Other variables were considered, such as when comparing several predictors or covariate-adjusted ROC curves, but not in the form of producing predictions from multivariable models and evaluating their accuracy. Chapters 8 and 9 deal with this problem.

It is useful to discuss ...