Variables | Training set (n = 120) | Internal validation set (n = 38) | External validation set (n = 51) | p value |
---|---|---|---|---|
Clinical characteristics | ||||
Early postoperative recurrence (within 1 year after liver resection) | 36 (30.00) | 10 (26.32) | 24 (47.06) | 0.056 |
Age (years) | 51.22 ± 11.23 | 53.74 ± 10.77 | 56.04 ± 10.48# | 0.034* |
ALT (IU/l) | 50.67 ± 64.70 | 44.79 ± 25.26 | 35.48 ± 20.92 | 0.199 |
AST (IU/l) | 45.17 ± 33.37 | 41.55 ± 23.52 | 38.79 ± 24.68 | 0.383 |
PT(s) | 12.34 ± 1.07& | 11.79 ± 1.03^ | 13.47 ± 1.20# | < 0.001* |
PLT (× 10^9/l) | 152.30 ± 73.36 | 149.32 ± 68.67 | 138.94 ± 71.07 | 0.310 |
Gender (male/female) | 68/16 | 32/6 | 44/7 | 0.713 |
AFP (> 400 ng/mL) | 39 (32.5) | 12 (31.58) | 11 (21.57) | |
CEA (> 5 ng/mL) | 11 (9.17) | 4 (10.53) | 2 (3.92) | |
HBsAg (Positive) | 89 (74.17) | 35 (92.11) | 41 (80.39) | |
ALBI grade | 0.036* | |||
A | 92 (76.67) | 30 (78.95) | 30 (58.82) | |
B | 28 (23.33) | 8 (21.05) | 21 (41.18) | |
Child-pugh | 0.619 | |||
A | 118 (98.33) | 37 (97.37) | 49 (96.08) | |
B | 2 (1.67) | 1 (2.63) | 2 (3.92) | |
BCLC stage | 0.001* | |||
0 | 6 (5) & | 6 (15.79) ^ | 2 (3.92) # | |
A | 56 (46.67) | 14 (36.84) | 44 (86.27) | |
B | 30 (25) | 6 (15.79) | 5 (9.81) | |
C | 28 (23.33) | 12 (31.57) | 0 (0.00) | |
Type of surgery | 0.084 | |||
Major hepatectomy(≥ 3 segments) | 7 (5.83) | 7 (18.42) | 5 (21.57) | |
Minor hepatectomy(< 3 segments) | 113 (94.17) | 31 (81.58) | 46 (78.43) | |
Pathological characteristics | ||||
Tumor differentiation | 0.383 | |||
High | 5 (5.95) | 2 (5.25) | 5 (9.80) | |
Low-mediate | 115 (94.05) | 36 (94.74) | 46 (90.20) | |
Resection margin | 0.490 | |||
R0-Width margin(disease-free margin > 1 cm) | 115 (95.83) | 38 (100) | 50 (98.04) | |
R0-Narrow margin(disease-free margin 1 mm-1 cm) | 4 (3.33) | 0 (0.00) | 1 (1.96) | |
R1(disease-free margin < 1 mm) | 1 (0.84) | 0 (0.00) | 0 (0.00) | |
Pattern of Recurrence | 0.592 | |||
Intrahepatic | 21 (58.33) | 8 (66.67) | 17 (70.83) | |
Extrahepatic | 1 (2.78) | 0 (0.00) | 1 (4.17) | |
Both | 14 (38.89) | 2 (33.33) | 6 (25.00) |