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Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
13:44

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Published on: August 30, 2013

Information distortion in physicians' diagnostic judgments.

Olga Kostopoulou1, J Edward Russo2, Greg Keenan1

  • 1King’s College London, London, United Kingdom (OK, GK, BCD, AD)

Medical Decision Making : an International Journal of the Society for Medical Decision Making
|May 25, 2012
PubMed
Summary
This summary is machine-generated.

Physicians sometimes distort medical information to support early diagnoses, a tendency decreasing with experience. This information distortion could explain why doctors commit to initial diagnostic beliefs.

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Area of Science:

  • Medical Decision Making
  • Cognitive Psychology

Background:

  • Information distortion is the alteration of new information to align with emerging beliefs.
  • Physicians may distort incoming medical data to support a developing diagnosis.

Purpose of the Study:

  • To quantify the extent of information distortion by physicians when forming a diagnosis.
  • To investigate the relationship between diagnostic belief strength and information distortion.

Main Methods:

  • An anonymous questionnaire assessed physician responses to patient scenarios with competing diagnoses.
  • An experimental group received information favoring one diagnosis before neutral and conflicting cues, while a control group rated cues randomly.
  • Distortion was calculated by comparing experimental and control group ratings.

Main Results:

  • Physicians demonstrated statistically significant information distortion (P < 0.001), linked to the strength of their initial diagnostic belief.
  • More experienced physicians (over 10 years) showed less distortion than less experienced ones (P < 0.05).
  • Fifty-six percent of physicians remained committed to their initial diagnosis after conflicting information, with distortion strongly associated with this commitment (OR=1.4, P=0.03).

Conclusions:

  • Information distortion may contribute to physicians' commitment to early diagnostic hypotheses.
  • Both diagnostic belief strength and information distortion appear to decrease after a decade of practice in family medicine.