Table 7.
Summary comparison of survival rates at 5 years for 1000-iterations of bootstrap on 1274 subjects and original samples
| Variable | Summary statistics for 1000-iterations of bootstrap on 1274 subjects | Survival rates at 5 years on original samples (%) | ||||
|---|---|---|---|---|---|---|
| Median (%) | Minimum (%) | Maximum (%) | Mean (%) | Standard deviation (%) | ||
| QOL | ||||||
| Non deficit (QOL>50) | 62.9 | 56.6 | 68.8 | 62.8 | 1.8 | 62.8 |
| Deficit (QOL ≤ 50) | 29.8 | 14.8 | 43.5 | 29.8 | 4.6 | 29.9 |
| Age, years | ||||||
| <60 | 67.1 | 55.8 | 77.1 | 67.1 | 3.1 | 67.1 |
| 60–69.999 | 64.9 | 54.2 | 73.5 | 64.9 | 2.9 | 64.6 |
| 70–79.999 | 48.2 | 36.6 | 56.8 | 48.2 | 3.1 | 48.2 |
| ≥80 | 38.1 | 18.3 | 59.4 | 38.2 | 6.0 | 38.2 |
| Gender | ||||||
| Female | 64.9 | 55.7 | 73.7 | 64.8 | 2.5 | 64.8 |
| Male | 51.3 | 43.8 | 59.6 | 51.4 | 2.4 | 51.3 |
| ECOG performance score | ||||||
| 0, 1 | 61.8 | 55.1 | 68.6 | 61.8 | 1.8 | 61.8 |
| 2, 3, 4 | 24.3 | 13.4 | 41.0 | 24.5 | 4.3 | 24.3 |
| Smoking cessation | ||||||
| Quit | 58.7 | 53.3 | 63.5 | 58.6 | 1.8 | 58.6 |
| Kept smoking | 29.1 | 6.9 | 66.6 | 29.5 | 10.0 | 28.2 |
| Tumor size (cm) | ||||||
| ≤2 cm | 69.2 | 61.2 | 78.1 | 69.2 | 2.7 | 69.2 |
| >2 cm | 50.4 | 43.8 | 56.7 | 50.4 | 2.2 | 50.4 |
| Regional nodal involvement | ||||||
| No nodal metastases | 65.4 | 58.8 | 71.7 | 65.3 | 2.0 | 65.3 |
| In ipsilateral peribronchial and/or ipsilateral hilar | 45.9 | 23.4 | 66.5 | 45.8 | 5.7 | 46.0 |
| In ipsilateral mediastinal and/or subcarinal | 33.3 | 20.5 | 45.1 | 33.4 | 4.0 | 33.2 |
| Metastasis in contralateral mediastinal | 14.7 | 3.6 | 47.6 | 15.7 | 7.5 | 12.5 |
| Distant metastasis | ||||||
| Absence | 60.9 | 55.0 | 66.0 | 60.9 | 1.8 | 60.9 |
| Presence | 10.7 | 1.7 | 27.5 | 11.0 | 4.3 | 10.9 |
QOL, quality of life; ECOG, Eastern Cooperative Oncology Group.