Table 2. Hong Kong Liver Cancer staging system [40].
| Stage | Prognostic factor | |||
|---|---|---|---|---|
| ECOG PS | Child-Pugh grade | Tumor status | EVM | |
| I | 0 | A | Early | No |
| IIa | 1a | Ba | Early | No |
| IIb | 0-1 | A | Intermediate | No |
| IIIa | 0-1 | B | Intermediate | No |
| IIIb | 0-1 | A/B | Locally advanced | No |
| IVa | 0-1 | A | Any | Yes |
| IVb | 0-1 | B | Any | Yes |
| Va | 2-4b | Cb | Early | No |
| Vb | 2-4b | Cb | Intermediate or locally advancedc | Yesc |
ECOG PS, Eastern Cooperative Oncology Group performance status; EVM, extrahepatic vascular invasion/metastasis.
a ECOG PS 1 and/or Child-Pugh B.
b ECOG PS 2-4 and/or Child-Pugh C.
c Intermediate/locally advanced tumor or EVM.