3.
免疫组化法所测EGFR突变的阳性预测值
PPV of EGFR mutation by IHC
| Immunostaining scores | n | Cofirmed mutated samples | PPV |
| EGFR: epidermal growth factor receptor; PPV: positive predictive value. | |||
| 1+ | 6 | 3 | 50% |
| 2+ | 3 | 3 | 100% |
| 3+ | 4 | 4 | 100% |
| Total | 13 | 10 | 76.9% |
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