Table 2.
Univariate analysis of predictive factors for OS of the surgical group (n = 11)
| Predictive factors | Patients | 5-year OS (%) | Log-rank p value |
|---|---|---|---|
| Gender | |||
| Male | 6 | 16.7 | |
| Female | 5 | 20.0 | 0.956 |
| Age (years) | |||
| >50 | 7 | 14.3 | |
| ≤50 | 4 | 25.0 | 0.176 |
| Histological subtypes of primary tumor | |||
| Adenocarcinoma | 8 | 12.5 | |
| Non-adenocarcinoma | 3 | 33.3 | 0.855 |
| Oligometastatic site | |||
| Ipsilateral lung | 4 | 50.0 | |
| Contralateral lung | 7 | 0.00 | 0.104 |
| Oligometastatic mode | |||
| Sync-oligometastasis | 3 | 0.00 | |
| Oligo-recurrence | 8 | 25.0 | 0.012 |
| Number of oligometastatic nodules | |||
| One | 6 | 33.3 | |
| Two or Three | 5 | 0.00 | 0.040 |
| pN of primary tumor | |||
| N0 | 4 | 50.0 | |
| N1 or N2 | 7 | 0.00 | 0.038 |
| TNM stage of primary tumor | |||
| I or II | 7 | 28.6 | |
| III or IV | 4 | 0.00 | 0.0004 |
Italicized figures represent statistically significant difference