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Graphical presentation of diagnostic information.

Penny F Whiting1, Jonathan A C Sterne, Marie E Westwood

  • 1Department of Social Medicine, Canynge Hall, Whiteladies Road, Bristol, BS8 2PR, UK. penny.whiting@bristol.ac.uk

BMC Medical Research Methodology
|April 15, 2008
PubMed
Summary
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Graphical displays are underused in diagnostic accuracy studies. Improved graphics are needed to better communicate test utility and patient impact in clinical practice.

Area of Science:

  • Medical research methodology
  • Biostatistics
  • Health informatics

Background:

  • Graphical displays are crucial for summarizing and communicating study findings.
  • Effective presentation of diagnostic information requires conveying both accuracy and predictive value.
  • Interpretable graphics enhance the understanding of diagnostic test characteristics and clinical utility.

Purpose of the Study:

  • To review the use of graphical displays in primary diagnostic accuracy studies and systematic reviews.
  • To identify common graphical display types and their prevalence in recent literature.

Main Methods:

  • Systematic review of graphical display usage in primary diagnostic accuracy studies.
  • Systematic review of graphical display usage in systematic reviews of diagnostic accuracy studies.

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Main Results:

  • 57 primary studies and 49 systematic reviews were analyzed.
  • Over half of primary studies (56%) and systematic reviews (53%) used graphical displays.
  • Dot-plots/box-and-whisker plots were common in primary studies (39%), while ROC plots dominated systematic reviews (45%).

Conclusions:

  • Graphical displays are underutilized in diagnostic accuracy research.
  • Multiple graphic types are needed to present comprehensive results, including diagnostic accuracy and predictive value.
  • Enhancements in graphical displays are necessary to better communicate clinical utility and patient-specific implications of test results.