Table 3. RETREAT score components and scoring criteria breakdown.
| Characteristic | Range of values | RETREAT points |
| Alpha-fetoprotein at transplant in ng/mL | ||
| 0-20 | 0 | |
| 21-99 | 1 | |
| 100-999 | 2 | |
| >1000 | 3 | |
| Microvascular invasion | ||
| Absent | 0 | |
| Present | 2 | |
| Largest active tumor length (cm) + number of active tumors | ||
| 0 | 0 | |
| 1.1-4.9 | 1 | |
| 5-9.9 | 2 | |
| ≥10 | 3 | |