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Related Experiment Videos

Percentiles as reference values for laboratory data.

R G Rossing, W E Hatcher

    American Journal of Clinical Pathology
    |July 1, 1979
    PubMed
    Summary

    Reporting laboratory results using reference percentiles offers clinicians an interpretable measure of result unusualness. A modified estimation method provides more stable percentile values without assuming population distribution, now used for spirometric data.

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    Area of Science:

    • Clinical Laboratory Science
    • Biostatistics
    • Medical Diagnostics

    Background:

    • Laboratory results are conventionally reported in standard units.
    • Interpreting the clinical significance of a laboratory result can be challenging.
    • Reporting results as percentiles from a reference population offers an intuitive measure of how unusual a value is.

    Purpose of the Study:

    • To describe a modified method for estimating reference percentiles.
    • To provide a more stable and interpretable measure of laboratory result unusualness.
    • To apply this method for reporting spirometric data.

    Main Methods:

    • Developed a modified method for reference percentile estimation.
    • The method does not assume a specific distribution for the reference population.
    • Employs techniques to reduce variability compared to previous interpolation-based methods.

    Main Results:

    • The modified method yields percentile values with smaller variability.
    • This approach enhances the interpretability of laboratory results for clinicians.
    • The method is successfully implemented for spirometric data analysis.

    Conclusions:

    • The modified percentile estimation method offers a robust alternative to conventional reporting.
    • This technique improves the clinical interpretation of laboratory test results.
    • The method's application to spirometric data demonstrates its practical utility.

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