Table 3 Rebiopsy outcomes
Variable | T790M mutation | ||
|---|---|---|---|
Positive patients (n = 29) | Negative patients (n = 17) | Total patients (n = 46) | |
Tissue biopsy (included cytology) count | 31 | 12 | 43 |
T790M positive count | 24 (77.4) | – | 24 (55.8) |
With Original mutation | 22 | – | 22 |
Without Original mutation | 2 | – | 2 |
T790M negative count | 7 (22.6) | 12 | 19 (44.2) |
With Original mutation | 5 | 10 | 15 |
Without Original mutation | 2 | 2 | 4 |
Liquid biopsy count | 58 | 40 | 98 |
T790M positive count | 11 (19.0) | – | 11 (11.2) |
With Original mutation | 10 | – | 10 |
Without Original mutation | 1 | – | 1 |
T790M negative count | 47 (81.0) | 40 | 87 (88.8) |
With Original mutation | 9 | 11 | 20 |
Without Original mutation | 38 | 29 | 67 |
Total rebiopsy count | 89 | 52 | 141 |