Skip to main content
MedCalc
Mail a PDF copy of this page to:
(Your email address will not be added to a mailing list)
working
Show menu

Comparison of ROC curves

Command:Statistics
Next selectROC curves
Next selectComparison of ROC curves

Description

Use Comparison of ROC curves to test the statistical significance of the difference between the areas under 2 to 6 dependent ROC curves (derived from the same cases) with the method of DeLong et al. (1988) or Hanley & McNeil, 1983.

Required input

In the dialog box you need to enter:

Dialog box for comparison of ROC curves

Data

Methodology:

Graph

When you have completed the dialog box, click OK to proceed.

Results

The results window shows the data for the different ROC curves followed by the result of pairwise comparison of all ROC curves: the difference between the areas, the standard error, the 95% confidence interval for the difference and P-value. If P is less than the conventional 5% (P<0.05), the conclusion is that the two compared areas are significantly different.

Comparison of ROC curves - statistics

Display Roc curves

When you have selected Display ROC curves window in the dialog box, the program will also open a graph window with the different ROC curves.

Comparison of ROC curves - graph

Literature

See also