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Mutational status
| Variable | Levels | Frequency | Percentage |
|---|---|---|---|
| EGFR Mutation (any) | |||
| Negative | 428 | 86.1% | |
| Positive | 69 | 13.9% | |
| Indeterminate/Inconclusive* | 16 | - | |
| EGFR Exon 19 Deletion | |||
| Negative | 456 | 91.0% | |
| Positive | 45 | 9.0% | |
| Indeterminate | 2 | - | |
| Inconclusive | 10 | - | |
| EGFR L858R Mutation | |||
| Negative | 475 | 95.2% | |
| Positive | 24 | 4.8% | |
| Indeterminate | 5 | - | |
| Inconclusive | 9 | - | |
| KRAS | |||
| Wild type | 269 | 71.9% | |
| Mutant | 105 | 28.1% | |
| Indeterminate | 4 | - | |
| Inconclusive | 4 | - |
Indeterminate or inconclusive for either or both Exon 19 or L858R Mutations
