diagnostic test evaluation

What are Predictive Values?

Predictive values are another critical aspect of diagnostic test evaluation. They include the positive predictive value (PPV) and the negative predictive value (NPV).
Positive Predictive Value (PPV): The probability that a person has the disease given a positive test result.
Negative Predictive Value (NPV): The probability that a person does not have the disease given a negative test result.
These values are influenced by the prevalence of the disease in the population being tested.

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