|  | Training group (n = 155) | Internal testing set (n = 33) | P-value |
---|---|---|---|---|
Age | 0.425 | |||
 Median(range) | 57 (46–78) | 56 (48–72) |  | |
Sex | 0.276 | |||
 Male | 90 (58.06%) | 20 (60.61%) |  | |
 Female | 65 (41.94%) | 13 (39.39%) |  | |
Smoking | Â | Â | 0.135 | |
 Yes | 61 (39.35%) | 10 (30.30%) |  | |
 No | 94 (60.65%) | 23 (69.70%) |  | |
EGFR Status | Â | Â | 0.149 | |
 Mutant | 83 (53.55%) | 19 (57.58%) |  | |
 Wild | 72 (46.45%) | 14 (42.42%) |  |