Table 2 Rates of EGFR exon 21 mutation
Patient no. | Cells number | Mutation rate | P-value |
|---|---|---|---|
Long PFS group | 0.021 | ||
 No.1 | 19 | 17 (89.5%) | |
 No.2 | 21 | 17 (81.0%) | |
 No.3 | 19 | 17 (89.5%) | |
 Total | 59 | 51 (86.4%) | |
Short PFS group | |||
 No.4 | 18 | 13 (72.2%) | |
 No.5 | 21 | 14 (66.7%) | |
 No.6 | 22 | 15 (68.2%) | |
 Total | 61 | 42 (68.9%) | |