Table 5.
Hazard ratios after adjusting for confounding factors (after PSM).
| Age >65 | Age ≤65 | |||||
|---|---|---|---|---|---|---|
| Size group | p | Hazard ratio | 95% CI | p | Hazard ratio | 95% CI |
| 0–20 mm | ||||||
| RFA vs. HR (OS) | 0.47 | 1.13 | 0.81–1.59 | 0.004 | 1.51 | 1.14–1.99 |
| RFA vs. HR (DSS) | 0.76 | 1.08 | 0.67–1.73 | 0.03 | 1.34 | 1.03–1.65 |
| 21–30 mm | ||||||
| RFA vs. HR (OS) | 0.03 | 1.30 | 1.03–1.65 | <0.001 | 1.59 | 1.27–1.98 |
| RFA vs. HR (DSS) | 0.09 | 1.30 | 0.96–1.78 | 0.026 | 1.37 | 1.04–1.80 |
| 31–50 mm | ||||||
| RFA vs. HR (OS) | <0.001 | 2.00 | 1.63–2.45 | <0.001 | 1.77 | 1.48–2.11 |
| RFA vs. HR (DSS) | <0.001 | 2.06 | 1.63–2.59 | <0.001 | 1.72 | 1.42–2.10 |
HR, Hepatic resection; RFA, Radiofrequency ablation; OS, Overall survival; DSS, Disease-specific survival; PSM, Propensity score matching. Bold type indicates statistical significance.