Risk of main overall outcomes in the propensity score matched Cohort of tumors ≤ 3.0 cm, 3.1–4.0 cm and 4.1–5.0 cm
| Outcomes | PE | ≤ 3.0 cm HR (95% CI) | P | PE | 3.1–4.0 cm HR (95% CI) | P | PE | 4.1–5.0 cm HR (95% CI) | P |
|---|---|---|---|---|---|---|---|---|---|
| OS | |||||||||
| SR | 42 | Reference | 0.38 | 30 | Reference | 0.69 | 6 | Reference | 0.01 |
| MWA | 47 | 1.21 (0.79, 1.83) | 23 | 1.12 (0.65, 1.92) | 16 | 3.35 (1.31, 8.58) | |||
| CSS | |||||||||
| SR | 31 | Reference | 0.82 | 19 | Reference | 0.98 | 3 | Reference | 0.01 |
| MWA | 28 | 0.94 (0.56, 1.58) | 13 | 1.01 (0.50, 2.04) | 12 | 5.01 (1.41, 17.76) | |||
| DFS | |||||||||
| SR | 85 | Reference | 0.59 | 33 | Reference | 0.93 | 11 | Reference | 0.04 |
| MWA | 81 | 0.92 (0.68, 1.25) | 27 | 1.02 (0.61, 1.70) | 17 | 2.18 (1.01, 4.68) | |||
| LTP | |||||||||
| SR | 1 | Reference | 0.95 | 1 | Reference | 0.12 | 1 | Reference | 0.21 |
| MWA | 1 | 0.92 (0.06, 14.65) | 4 | 5.57 (0.62, 49.87) | 4 | 4.10 (0.46, 36.66) |
PE, patients with event; HR, hazard rate; OS, overall survival; CSS, cancer specific survival; DFS, disease free survival; LTP, local tumor progression; MWA, microwave ablation; SR, surgical resection.