Computer Program for Error Grid Analysis in Arterial Blood Pressure Method Comparison Studies.

We recently proposed continuous error grid analysis to describe the clinical relevance of measurement differences between a test and a reference method for arterial blood pressure (AP) measurement. Here, we present instructions on how to perform continuous error grid analysis in AP method comparison studies and provide a freely accessible computer program for automated computing of continuous error grids and calculation of the proportion of measurement pairs in the different risk zones.