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A Measure of Confidence in Bland–Altman Analysis for the Interchangeability of Two Methods of Measurement

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Abstract

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.

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Authors and Affiliations

  1. Department of Anesthesia, Toronto General Hospital, University Health Network, 200 Elizabeth Street 7EN-242, Toronto, ON, Canada, M5G 2C4

    David Preiss PhD MASc & Joseph Fisher MD FRCP(C)

Authors
  1. David Preiss PhD MASc
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  2. Joseph Fisher MD FRCP(C)
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Correspondence to David Preiss PhD MASc.

Additional information

Preiss D, Fisher J. A measure of confidence in Bland-Altman analysis for the interchangeability of two methods of measurement.

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Preiss, D., Fisher, J. A Measure of Confidence in Bland–Altman Analysis for the Interchangeability of Two Methods of Measurement. J Clin Monit Comput 22, 257–259 (2008). https://doi.org/10.1007/s10877-008-9127-y

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  • DOI: https://doi.org/10.1007/s10877-008-9127-y

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