Calculations Performed
- Sensitivity — True Positive Rate (TP / (TP + FN))
- Specificity — True Negative Rate (TN / (TN + FP))
- Positive Predictive Value (PPV) — TP / (TP + FP)
- Negative Predictive Value (NPV) — TN / (TN + FN)
- Positive Likelihood Ratio (LR+) — Sensitivity / (1 - Specificity)
- Negative Likelihood Ratio (LR-) — (1 - Sensitivity) / Specificity
- Accuracy — (TP + TN) / Total
- Prevalence — (TP + FN) / Total
How to Use
Enter the number of True Positives (TP), False Positives (FP), False Negatives (FN), and True Negatives (TN) from your clinical scenario. The calculator instantly computes all diagnostic statistics with clear explanations.