Table 3. Clinical features of the lung cancer group.
| Variable | Training set | Validation set | Clinical samples | p-value |
|---|---|---|---|---|
| Healthy count (%) | ||||
| Sex |
0.071 |
|||
| Male | 18 (48.65) | 38 (53.52) | 23 (57.50) | |
| Female | 19 (51.35) | 33 (46.48) | 17 (42.50) | |
| Age (year) |
0.728 |
|||
| Mean + SD | 55 ± 7 | 55 ± 7 | 65 ± 5 | |
| Lung cancer count (%) | ||||
| Sex |
0.331 |
|||
| Male | 25 (50.00) | 43 (49.42) | 23 (57.50) | |
| Female | 25 (50.00) | 44 (50.58) | 17 (42.50) | |
| Age (year) |
0.725 |
|||
| Mean + SD | 64 ± 5 | 64 ± 6 | 65 ± 5 | |
| TNM stage |
<0.01 |
|||
| I | 10 (20.00) | 17 (19.54) | 5 (12.50) | |
| II | 13 (26.00) | 20 (22.99) | 15 (37.50) | |
| III | 21 (42.00) | 29 (33.33) | 12 (30.00) | |
| IV | 6 (12.00) | 21 (24.14) | 8 (20.00) | |
| Healthy versus cancer (p value2) | ||||
| Sex | 0.919 | 0.873 | - | |
| Age | <0.001 | <0.001 | - | |