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| Carcinogens | Non‐carcinogens | |
|---|---|---|
| Genotoxicity positive | A | B |
| Genotoxicity negative | C | D |
| Sensitivity | % correctly identified carcinogens | A/(A + C) × 100 |
| Specificity | % correctly identified non‐carcinogens | D/(B + D) × 100 |
| Concordance | % correctly identified carcinogens and non‐carcinogens | (A + D)/(A + B + C + D) × 100 |
