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Published on: June 12, 2019
Inter-rater reliability of case-note audit: a systematic review
Richard Lilford1, Alex Edwards, Alan Girling
1Department of Public Health and Epidemiology, University of Birmingham, Birmingham, UK. R.J.Lilford@bham.ac.uk
Assessing clinical care quality through case-note audits shows variable inter-rater reliability. Reliability is higher with explicit criteria and outcome focus, but publication bias may inflate results.
Area of Science:
- Healthcare Quality Improvement
- Medical Record Analysis
- Clinical Audit Research
Background:
- Retrospective case-note audit is a common method for evaluating clinical care quality.
- Determining the consistency of judgments between different reviewers (inter-rater reliability) is crucial for accurate assessments.
Purpose of the Study:
- To systematically review and synthesize the existing literature on the inter-rater reliability of case-note audits.
- To identify factors influencing the reliability of case-note reviews.
Main Methods:
- A systematic review was conducted, analyzing 26 studies that compared the independent judgments of two or three raters.
- Sixty-six separate reliability comparisons were extracted and analyzed.
Main Results:
- Mean kappa values, a measure of agreement, ranged from 0.32 to 0.70, with potential inflation due to publication bias.
- Higher reliability was observed when using explicit criteria versus implicit criteria.
- Reviews focusing on patient outcomes demonstrated greater reliability than those focusing on process errors.
Conclusions:
- The reliability of case-note audits is influenced by the review criteria and focus (outcome vs. process).
- The relationship between kappa statistics and the prevalence of errors necessitates careful consideration in study design and interpretation.
- Alternative statistical methods, such as tetrachoric and polychoric correlations, may be more appropriate for assessing inter-rater reliability in certain contexts.
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