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Script Concordance Testing to Determine Infant Lumbar Puncture Practice Variation.

Nnenna Ogochukwu Chime, Martin V Pusic, Marc Auerbach

    Pediatric Emergency Care
    |September 27, 2016
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    Summary

    Script concordance testing (SCT) effectively quantifies practice variations in infant lumbar puncture (LP) decisions among pediatricians. It revealed significant differences in LP use based on subspecialty and practice frequency.

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    Area of Science:

    • Pediatric Medicine
    • Clinical Decision-Making
    • Medical Education

    Background:

    • Script concordance testing (SCT) is a validated method for assessing clinical decision-making skills.
    • Understanding practice variations in procedures like infant lumbar puncture (LP) is crucial for standardizing care.
    • Physician characteristics can influence diagnostic and treatment decisions, necessitating their analysis.

    Purpose of the Study:

    • To quantify practice variations in infant lumbar puncture (LP) decisions using SCT.
    • To analyze how physician characteristics impact LP decision-making in infants.
    • To evaluate the utility of SCT in detecting subspecialty practice variations.

    Main Methods:

    • A panel of pediatric subspecialists developed 15 infant LP case vignettes with 47 SCT questions.
    • Vignettes were administered to pediatric attending physicians and fellows across 10 INSPIRE Network hospitals.
    • Raw scores (LP tendency) and SCT scores (panel agreement) were analyzed, along with variations by participant factors.

    Main Results:

    • 226 physicians completed the 47 SCT questions.
    • Pediatric emergency medicine physicians showed significantly higher raw scores for LP than general pediatricians.
    • Concordance with the reference panel varied by subspecialty and practitioner's frequency of performing LPs.

    Conclusions:

    • Script concordance testing is a valuable tool for detecting and quantifying practice variations in infant LP.
    • Significant practice variations in infant LP use exist among different pediatric subspecialties.
    • SCT can identify differences in decision-making based on physician specialty and experience.