Likelihood ratio

Likelihood ratios are among the clinical performance characteristics an IVD manufacturer may report under the IVDR. Unlike predictive values, they do not depend on how common the condition is in the tested population, so they transfer better between clinical settings.

‘likelihood ratio’ means the likelihood of a given result arising in an individual with the target clinical condition or physiological state compared to the likelihood of the same result arising in an individual without that clinical condition or physiological state;

IVDR, Article 2(54)