A measure of confidence in Bland-Altman analysis for the interchangeability of two methods of measurement.
Bland-Altman (B-A) analysis has largely replaced the correlation coefficient as the predominant tool for evaluating the interchangeability of two methods of clinical measurement. However, we contend that B-A analysis might lead to erroneous conclusions when the data range is small. We provide an example to illustrate this and explore a possible analysis technique to address this limitation.
Preiss
David
D
Department of Anesthesia, Toronto General Hospital, University Health Network, 200 Elizabeth Street 7EN-242, Toronto, ON, Canada M5G 2C4. david.preiss@utoronto.ca
Fisher
Joseph
J
D000465:Algorithms; D003198:Computer Simulation; D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D015233:Models, Statistical