Table 2 Cross-tabulation of true IHC score and predicted HER2 status of the test dataset. ‘2–’ and ‘2+’ scores stand for IHC score 2 and HER2-negative and -positive status, respectively.
True IHC score | ||||
---|---|---|---|---|
Predicted HER2 status | 0 | 2- | 2+ | 3 |
Negative | 273 | 3 | 1 | 0 |
Positive | 11 | 4 | 7 | 8 |