Diagnostic test evaluation calculator
Instructions: enter the number of cases in the diseased group that test positive (a) and negative (b); and the number of cases in the non-diseased group that test positive (c) and negative (d).
Next click the Test button.
|Positive Likelihood Ratio|
|Negative Likelihood Ratio|
|Positive Predictive Value||(*)|
|Negative Predictive Value||(*)|
See Help for computational details and interpretation.
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