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. 2009 May-Jun;57(3):217-21.
doi: 10.4103/0301-4738.49397.

Likelihood ratios: clinical application in day-to-day practice

Rajul Parikh  1 , Shefali Parikh, Ellen Arun, Ravi Thomas
Affiliations

Likelihood ratios: clinical application in day-to-day practice

Rajul Parikh et al. Indian J Ophthalmol. 2009 May-Jun.

Abstract

In this article we provide an introduction to the use of likelihood ratios in clinical ophthalmology. Likelihood ratios permit the best use of clinical test results to establish diagnoses for the individual patient. Examples and step-by-step calculations demonstrate the estimation of pretest probability, pretest odds, and calculation of posttest odds and posttest probability using likelihood ratios. The benefits and limitations of this approach are discussed.

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Conflict of interest statement

Conflict of Interest: None declared.

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