Table 3.
Multivariable analyses of disease-free survival and overall survival
| Characteristics | Number | Risk ratio | 95% CI | P value |
|---|---|---|---|---|
| Disease-free survival | ||||
| Sex (male/female) | 87/51 | 1.338 | 0.859–2.085 | 0.197 |
| RFA/resection | 46/92 | 1.661 | 1.085–2.543 | 0.020 |
| T stage (T4/T1–3) | 46/92 | 1.652 | 1.059–2.579 | 0.027 |
| N stage (N+/N0) | 91/47 | 1.872 | 1.163–3.014 | 0.010 |
| Diameter (> 3 cm/≤ 3 cm) | 52/86 | 2.315 | 1.504–3.564 | < 0.001 |
| Overall survival | ||||
| RFA/resection | 46/92 | 1.198 | 0.453–1.778 | 0.494 |
| T stage (T4/T1–3) | 46/92 | 2.152 | 1.293–3.583 | 0.003 |
| Diameter (> 3 cm/≤ 3 cm) | 52/86 | 1.925 | 1.156–3.206 | 0.012 |
| Adjuvant chemotherapy (no/yes) | 77/61 | 1.460 | 0.523–1.460 | 0.608 |
RFA radiofrequency ablation, CI confidence interval