Table 4.
Five-year survival rates and the corresponding score
| Variable | Five-year survival, % | Score |
|---|---|---|
| QOL | ||
| Non-deficit (>50) | 63 | 6 |
| Deficit (QOL ≤ 50) | 30 | 3 |
| Age, years | ||
| <60 | 67 | 7 |
| 60–69.999 | 65 | 7 |
| 70–79.999 | 48 | 5 |
| ≥80 | 38 | 4 |
| Sex | ||
| Female | 65 | 7 |
| Male | 51 | 5 |
| ECOG performance score | ||
| 0, 1 | 62 | 6 |
| 2, 3, 4 | 24 | 2 |
| Smoking cessation | ||
| Quit | 59 | 6 |
| Kept smoking | 28 | 3 |
| Tumor size | ||
| ≤2 cm | 69 | 7 |
| >2 cm | 50 | 5 |
| Regional nodal involvement | ||
| No nodal metastases | 65 | 7 |
| In ipsilateral peribronchial and/or ipsilateral hilar nodes | 46 | 5 |
| In ipsilateral mediastinal and/or subcarinal nodes | 33 | 3 |
| Metastasis in contralateral mediastinal nodes | 13 | 1 |
| Distant metastasis | ||
| Absence | 61 | 6 |
| Presence | 11 | 1 |
QOL, quality of life; ECOG, Eastern Cooperative Oncology Group.