Table 1.
Clinicopathological characteristics of NSCLC patients in the training set.
| Variables | Number | % |
|---|---|---|
| Age | ||
| <65 | 37 | 28.5 |
| ≥65 | 93 | 71.5 |
| Sex | ||
| Female | 34 | 26.2 |
| Male | 96 | 73.8 |
| Histology | ||
| Adenocarcinoma | 96 | 73.8 |
| Squamous | 31 | 23.8 |
| Other | 3 | 2.3 |
| T stage | ||
| Tis | 5 | 3.8 |
| T1 | 53 | 40.8 |
| T2 | 49 | 37.7 |
| T3 | 16 | 12.3 |
| T4 | 7 | 5.4 |
| N stage | ||
| N0 | 104 | 80 |
| N1 | 12 | 9.2 |
| N2 | 14 | 10.8 |
| Radiation | ||
| Yes | 14 | 10.8 |
| No | 116 | 89.2 |
| Chemotherapy | ||
| Yes | 37 | 28.5 |
| No | 93 | 71.5 |
| EGFR status | ||
| Yes | 19 | 14.6 |
| No | 82 | 63.1 |
| Unknown | 29 | 22.3 |
| ALK status | ||
| Yes | 2 | 1.5 |
| No | 97 | 74.6 |
| Unknown | 31 | 23.8 |
| KRAS status | ||
| Yes | 24 | 18.5 |
| No | 77 | 59.2 |
| Unknown | 29 | 22.3 |