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Using a prediction approach to assess agreement between two continuous measurements

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Abstract

The problem of assessing agreement between two devices occurs with great frequency in the medical literature. If it can be demonstrated that a new device agrees sufficiently with a device currently in use, then the new device can be approved for general use. This work discusses how a prediction interval can be used to estimate the whether a future difference between two devices will be within acceptable limits with reasonable confidence. The method is illustrated with an example involving measurements of peak expiratory flow.

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Authors and Affiliations

  1. Department of Clinical Operations, Edwards Lifesciences, One Edwards Way, Irvine, CA, 92614, USA

    Cody Hamilton PhD

  2. Department of Statistical Science, Baylor University, Waco, TX, 76798-7140, USA

    James D. Stamey PhD

Authors
  1. Cody Hamilton PhD
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  2. James D. Stamey PhD
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Correspondence to Cody Hamilton PhD.

Additional information

Hamilton C, Stamey JD. Using a prediction approach to assess agreement between two continuous measurements.

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Hamilton, C., Stamey, J.D. Using a prediction approach to assess agreement between two continuous measurements. J Clin Monit Comput 23, 311–314 (2009). https://doi.org/10.1007/s10877-009-9198-4

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  • DOI: https://doi.org/10.1007/s10877-009-9198-4

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