Table 1 Comparison of patient demographics and clinicopathological features of the two datasets
Variable | Training dataset (n = 131) | Test dataset (n = 55) | p value |
|---|---|---|---|
Sex, n (%) | 0.363 | ||
Male | 118 (90.08) | 47 (85.46) | |
Female | 13 (9.92) | 8 (14.54) | |
Age, years | 58.69 ± 11.13 | 53.25 ± 17.19 | 0.387 |
BMI, kg/m2 | 23.97 ± 3.79 | 23.89 ± 4.01 | 0.963 |
HBsAg positive, n (%) | 104 (79.38) | 36 (65.45) | 0.044 |
Child-Pugh class, n (%) | 0.923 | ||
A | 115 (87.79) | 48 (87.27) | |
B | 16(12.21) | 7(12.72) | |
AFP, median (IQR), ng/ml | 38.7 (4–3849) | 171.5 (9–9312) | 0.717 |
Liver function tests | |||
ALB (g/L) | 38.07 ± 4.84 | 37.55 ± 6.57 | 0.837 |
TBIL (μmol/L) | 16.07 ± 8.75 | 18.94 ± 12.43 | 0.541 |
ALT (U/L) | 48.00 ± 53.05 | 58.88 ± 47.64 | 0.641 |
AST (U/L) | 81.23 ± 63.99 | 75.75 ± 66.02 | 0.853 |
GGT(U/L) | 130.62 ± 109.54 | 167.13 ± 166.12 | 0.549 |
Cr (μmol/L) | 50.46 ± 11.81 | 55.63 ± 12.83 | 0.358 |
PLT(109/L) | 202.92 ± 83.81 | 198.50 ± 63.50 | 0.900 |
PT (s) | 13.45 ± 1.32 | 12.59 ± 1.26 | 0.155 |
INR | 1.04 ± 0.12 | 1.02 ± 0.96 | 0.631 |
Tumor size, mm | 125.54 ± 25.78 | 127.13 ± 52.94 | 0.930 |
Cirrhosis, n (%) | 76 (58.02) | 29 (52.72) | 0.507 |
Extent of resection | 0.515 | ||
Extended (≥ 4 segments) | 84 (64.12) | 38 (69.09) | |
Partial (< 4 segments) | 47 (35.88) | 17 (30.91) | |
Conventional predictive models | |||
Child-Pugh scorea | 5 (5–8) | 5 (5–8) | 0.463 |
MELD scorea | 7 (6–15) | 7 (6–13) | 0.568 |
ALBI scoreb | − 2.47 (− 0.51~− 3.42) | − 2.55 (− 1.09~− 3.32) | 1.000 |
Intraoperative blood loss, ml b | 400 (200–800) | 500 (300–800) | 0.199 |
Intraoperative blood transfusion, n (%) | |||
Yes | 87 (66.4%) | 23 (41.8%) | 0.002 |
No | 44 (33.6%) | 32 (58.2%) | |
Pringle maneuver, n (%) | 0.872 | ||
Yes | 65 (49.6%) | 28 (50.9%) | |
No | 66 (50.4%) | 27 (49.1%) | |
PHLF (B/C), n (%) | 0.293 | ||
Yes | 41 (31.30) | 13 (23.64) | |
No | 90 (68.70) | 42 (76.36) | |
Postoperative mortality, n (%) | 5 (3.8%) | 3 (5.4%) | 0.696 |