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🏥 Health Calculators Assistant

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Specificity Calculator

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Specificity Calculator

Diagnostic Test Performance Metrics

Calculate Specificity & Test Metrics

📊 What is Specificity?

Specificity measures the ability of a diagnostic test to correctly identify people without the disease (true negative rate).

Formula: Specificity = TN / (TN + FP) × 100%

A test with high specificity produces few false positives and is good at ruling in a disease when positive.

🔢 Confusion Matrix Reference

Test Results Actual Condition
Disease Present Disease Absent
Test Result Positive True Positive (TP) False Positive (FP)
Negative False Negative (FN) True Negative (TN)
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