Table 1.
Patient characteristics, n (%)
| Variable | With bone metastasis (n = 66) | Without bone metastasis (n = 72) |
| Age, yr | ||
| Range | 23-84 | 22-78 |
| Mean | 58 | 59 |
| Sex | ||
| Male | 46 (70) | 53 (71) |
| Female | 20 (30) | 19 (29) |
| Liver resection | ||
| With | 55 (83) | 58 (81) |
| Without | 11 (17) | 14 (19) |
| Set | ||
| Training set | 38 (58) | 38 (53) |
| Validation set | 28 (42) | 34 (47) |
| TNM stage of HCC | ||
| I | 0 | 0 |
| II | 0 | 8 |
| III | 0 | 64 |
| IV | 66 | 0 |
| Method for | ||
| metastasis detection1 | / | |
| MRI/CT | 54 | |
| ECT/SPET-CT | 66 | |
| PET-CT | 12 |
1
Multiple methods were used to detect bone metastasis. TNM: Tumor node metastasis; HCC: Hepatocellular carcinoma; MRI: Magnetic resonance imaging; PET-CT: Positron emission tomography-computed tomography.