Table 1. Basic characteristics of patients from the SEER database.
| Characteristics | Frequency, n (%) |
|---|---|
| Sex | |
| Female | 104 (34.4) |
| Male | 198 (65.6) |
| Age at diagnosis | |
| <2-year-old | 193 (63.9) |
| ≥2-year-old | 109 (36.1) |
| Race | |
| White | 240 (79.5) |
| Black | 19 (6.3) |
| Others | 43 (14.2) |
| Distant metastases | |
| No | 221 (73.2) |
| Yes | 81 (26.8) |
| Tumor size | |
| ≤5 cm | 36 (11.9) |
| >5 cm | 233 (77.2) |
| Unknown | 33 (10.9) |
| Multiple or single | |
| Single | 182 (60.3) |
| Multiple | 64 (21.2) |
| Unknown | 56 (18.5) |
| Macrovascular invasion | |
| Yes | 33 (10.9) |
| No | 244 (80.8) |
| Unknown | 25 (8.3) |
| Surgery type | |
| No-surgery | 47 (15.6) |
| Resection | 202 (66.9) |
| LT | 53 (17.5) |
SEER, Surveillance, Epidemiology and End Results; LT, liver transplantation.