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Sensitivity Analysis Assessing the Impact of Unknown Local HER2 Status on the Discordance Rate
| Local Testing | Central Testing | Discordance | ||
|---|---|---|---|---|
| Negative (n) | Positive (n) | Total (n) | ||
| Negative | 530 | 22 | 552 | 4.0% |
| Unknowna | 48 | 0 | 48 | N/A |
| Total | 578 | 22 | 600 | 3.7% |
Abbreviations: HER2, human epidermal growth factor receptor; N/A, not available.
Tumor tissue from 1 of 49 patients with unknown local HER2 status was unevaluable by central testing.
