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True positive (TP), false positive (FP), true negative (TN), and false negative (FN) results.
| Basophil activation test | Presence of cow milk allergy | |
|---|---|---|
| Yes | No | |
| Positive | TP (n = 12) | FP(n = 0) |
| Negative | FN (n = 6) | TN (n = 30) |
| Together | TP + FN (n = 18) | FP + TN (n = 30) |
