Variables | Hazard ratio | 95 % confidence interval | p value |
---|---|---|---|
Disease-free interval, months | |||
≤36 vs. >36 | 1.51 | 1.14 ~ 2.04 | 0.004 |
Surgical approach | |||
Open surgery vs. VATS | 1.22 | 0.95 ~ 1.57 | 0.115 |
Multiplicity | |||
4+ vs. single | 2.17 | 1.29 ~ 3.52 | 0.004 |
4+ vs. 2–3 | 1.43 | 0.90 ~ 2.22 | 0.123 |
2–3 vs. single | 1.51 | 1.10 ~ 2.05 | 0.012 |
Bilaterality | |||
Yes vs. no | 1.00 | 0.67 ~ 1.49 | 0.990 |