likelihood ratio for a positive test (lr )

What is the Likelihood Ratio for a Positive Test?

The LR+ is defined as the ratio of the probability of a positive test result given the presence of disease to the probability of a positive test result given the absence of disease. Mathematically, it is expressed as:
LR+ = Sensitivity / (1 - Specificity)
This ratio helps determine how much more likely a positive test result is to occur in a person with the disease compared to someone without the disease.

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