7. Measures of Discrimination of Diagnostic Tests

  1. Matthew Thompson1,2,
  2. Ann Van den Bruel2

Published Online: 1 NOV 2011

DOI: 10.1002/9781119951827.ch7

Book Title

Diagnostic Tests Toolkit

Diagnostic Tests Toolkit

Additional Information

How to Cite

Thompson, M. and Van den Bruel, A. (2011) Measures of Discrimination of Diagnostic Tests, in Diagnostic Tests Toolkit, Wiley-Blackwell, Oxford, UK. doi: 10.1002/9781119951827.ch7

Author Information

  1. 1

    Department of Family Medicine, Oregon Health & Science University, Portland, Oregon, USA

  2. 2

    Department of Primary Care Health Sciences, University of Oxford, Oxford, UK

Publication History

  1. Published Online: 1 NOV 2011
  2. Published Print: 7 OCT 2011

Book Series:

Book Series Editors:

  1. Carl Heneghan,
  2. Rafael Perera,
  3. Douglas Badenoch

ISBN Information

Print ISBN: 9780470657584

Online ISBN: 9781119951827

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CHAPTER TOOLS

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Keywords:

  • diagnostic tests, measures discriminated;
  • diagnostic accuracy results;
  • two by two tables;
  • outcome measures;
  • diagnostic odds ratio (DOR);
  • sensitivity and specificity;
  • SpPin–SnNout rule of thumb;
  • predictive values and prevalence;
  • effect of time;
  • CAGE questionnaire, alcohol abuse

Summary

This chapter contains sections titled:

  • Two by two tables

  • Outcome measures

  • Which measure should you use and why?

  • The effect of prevalence on predictive values

  • Effect of time on diagnostic accuracy

  • Effect of severity of the target condition on diagnostic accuracy

  • The referral filter

  • Rules of thumb for interpreting likelihood ratios

  • Further reading

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