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

Method comparison: Comparison of multiple methods

Command:Statistics
Next selectMethod comparison & evaluation
Next selectComparison of multiple methods

Description

Comparison of multiple methods is an extension of the Bland-Altman plot (Bland & Altman, 1986 and 1999) for more than two methods. For each method, the differences with a reference method are plotted against the values of this reference method (Krouwer, 2008).

The procedure produces multiple bias plots in one single display with all axes aligned to facilitate comparison of the different methods.

If duplicate or multiple measurements (with two methods) were performed per subject, you should use Bland-Altman plot with multiple measurements per subject.

Required input

Dialog box for multiple method comparison

Select the variables for the methods you want to compare.

Options

*or ratios when this option was selected.

Results

The results panel displays the following information:

Results for multiple method comparison

Graph

The graphical display consists of multiple frames with Bland & Altman plots using the selected options.

Multiple method comparison graph (Bland-Altman plots)

Unlike other MedCalc graphs, this graphical display has limited editing possibilities:

Literature

See also