Table 2 The clinical features of the LUAD specimens used in this study
| Feature | WHO grade | ||
|---|---|---|---|
| I (n = 9) | II (n = 66) | III (n = 13) | |
| Gender | |||
| Male | 2 | 34 | 13 |
| Female | 7 | 32 | 0 |
| Age at diagnosis | |||
| < 60 | 4 | 29 | 5 |
| ≥ 60 | 5 | 37 | 8 |
| T stage | |||
| T1–2 | 7 | 54 | 10 |
| T3–4 | 2 | 14 | 3 |
| N stage | |||
| Nx | 2 | 12 | 1 |
| N0 | 6 | 25 | 5 |
| N1–3 | 0 | 32 | 7 |
| TNM stage | |||
| I | 5 | 31 | 5 |
| II | 5 | 18 | 4 |
| III | 0 | 17 | 4 |
| Location | |||
| Left | 6 | 27 | 6 |
| Right | 3 | 38 | 7 |