A perspective on standardizing the predictive power of nonivasive cardiovascular tests by likelihood ration compution: 2. Clinical applications

From: Mayo Clinic Proceedings | Date: November 1, 1999| Author: | Copyright information

Likelihood ratio measures may be used as a standard for expressing the predictive power of noninvasive cardiovascular tests, calculated from sensitivity and specificity measures or as ratios of the predictive value odds to pretest odds for positive and negative test results. The positive likelihood ratio, (+)LR, expresses the power of a positive test result to augment an estimate of disease probability independent of the pretest prevalence of disease in a given population; the negative likelihood ratio, (-)LR, expresses the power of a negative test result to augment an estimate of the ...

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