Comparison of treatment received by the <3 and ≥3 groups following ultrasonography surveillance
| Variable | <3 group, n (%) | ≥3 group, n (%) | p Value |
| PEI | 200 (6.4) | 244 (16.6) | <0.001 |
| Hepatectomy | 343 (10.9) | 221 (15.0) | <0.001 |
| RFA | 71 (2.3) | 101 (6.9) | <0.001 |
| Liver transplantation | 2 (0.1) | 6 (0.4) | 0.015 |
| TACE | 584 (18.5) | 453 (30.8) | <0.001 |
| Chemotherapy | 1169 (37.1) | 677 (46.0) | <0.001 |
| Radiotherapy | 647 (20.5) | 334 (22.7) | 0.097 |
| Five-year survival probability | 7.7% | 14.4% | <0.001 |
PEI, percutaneous ethanol injection; RFA, radiofrequency ablation; TACE, transcatheter arterial chemoembolisation.