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Determining the Maximum Youden Index for a ROC Plot

Purpose:

To determine the optimum cutoff for a test using the maximum Youden index of the test's ROC plot.

Specialty:

General content (available to all)

Objective:

criteria for diagnosis

ICD-10:

Description:

The maximum Youden index (Y) for a ROC plot should identify the optimum cut-off point for a test. The Youden Index (described above) is based on combining both the sensitivity and specificity for a test.

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