Table 1.
Baseline characteristics
| Tumor type | Internal Training (n = 1580) | Internal Test (n = 1308) | Validation HN (n = 636) | Validation CD (n = 94) | Validation GZ (n = 205) | Validation LS (n = 216) | |
|---|---|---|---|---|---|---|---|
|
Age, years (mean, std) |
HCC | 53.06 ± 11.90 | 52.34 ± 12.69 | 55.56 ± 10.34 | 59.79 ± 12.20 | 54.04 ± 11.00 | 57.5 ± 10.88 |
| ICC | 57.16 ± 12.10 | 57.27 ± 12.28 | 59.29 ± 10.38 | — | 59.18 ± 11.70 | 59.92 ± 12.14 | |
| MET | 55.07 ± 14.37 | 56.24 ± 13.44 | 58.61 ± 12.89 | — | — | — | |
| FNH | 35.12 ± 13.49 | 33.65 ± 13.21 | 35.46 ± 15.22 | — | — | — | |
| HEM | 50.13 ± 15.63 | 47.96 ± 11.06 | 50.77 ± 10.71 | — | — | — | |
| CYST | 58.53 ± 12.93 | 56.66 ± 12.36 | 59.13 ± 11.12 | — | — | — | |
|
Sex (Female/ Male) |
HCC | 155/548 | 196/750 | 42/259 | 20/74 | 31/142 | 21/135 |
| ICC | 157/166 | 43/37 | 18/26 | 0/0 | 23/20 | 31/18 | |
| MET | 70/79 | 60/73 | 39/59 | 0/0 | 0/0 | 0/0 | |
| FNH | 59/41 | 19/16 | 20/19 | 0/0 | 0/0 | 0/0 | |
| HEM | 84/48 | 33/30 | 63/31 | 0/0 | 0/0 | 0/0 | |
| CYST | 77/96 | 23/28 | 31/29 | 0/0 | 0/0 | 0/0 |
Note: Std denotes standard deviation, HN denotes Henan Provincial People’s Hospital, CD denotes the First Affiliated Hospital of Chengdu Medical College, GZ denotes Guizhou Provincial People’s Hospital, and LS denotes Leshan People’s Hospital. HCC denotes Hepatocellular Carcinoma, ICC denotes Intrahepatic Cholangiocarcinoma, MET denotes Metastatic Cancer, FNH denotes Focal Nodular Hyperplasia, HEM denotes Hemangioma, and CYST denotes Cyst.