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Related Experiment Videos

Interrater agreement with a standard scheme for classifying medication errors.

Ryan A Forrey1, Craig A Pedersen, Philip J Schneider

  • 1Department of Pharmacy, The Ohio State University Medical Center, Columbus, OH 43210-1291, USA.

American Journal of Health-System Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists
|January 12, 2007
PubMed
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The National Coordinating Council for Medication Error Reporting and Prevention (NCC MERP) index shows substantial agreement for categorizing medication errors. Refining the index scale may further improve its usefulness and validity in medication safety.

Area of Science:

  • Healthcare quality and safety
  • Medication error analysis
  • Pharmacovigilance

Background:

  • Medication errors pose a significant risk to patient safety.
  • Standardized systems for reporting and categorizing errors are crucial for analysis and prevention.
  • The National Coordinating Council for Medication Error Reporting and Prevention (NCC MERP) index is a tool used for this purpose.

Purpose of the Study:

  • To determine the interrater agreement and reliability of the NCC MERP index for categorizing medication errors.
  • To evaluate the impact of different categorization tools on agreement levels.

Main Methods:

  • A survey was distributed to MEDMARX system users, asking them to categorize 27 medication error scenarios.
  • Participants were randomly assigned to use the NCC MERP index alone, a paper-based algorithm, or a computer-based algorithm.

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  • Interrater agreement was measured using Cohen's kappa statistic, with the index categories collapsed from nine to six for analysis.

    • Main Results:

    • A response rate of 85% was achieved with 101 completed surveys.
    • Overall interrater agreement for the NCC MERP index was substantial (kappa = 0.61).
    • Collapsing the index categories to six significantly improved interrater agreement (kappa = 0.74), with no difference observed between the categorization tools.

    Conclusions:

    • The NCC MERP index demonstrates substantial interrater agreement for medication error categorization.
    • The provided tools did not significantly influence categorization outcomes.
    • Further refinement of the NCC MERP index scale could enhance its utility and validity in medication safety initiatives.