Table 1 Patients and tumor characteristics

 Gender (male/female)

458 (84.5 %)/84 (15.5 %)

 ECOG (0/1/2)

312 (57.6 %)/170 (31.4 %)/60 (11 %)

 Age (year) (≤60 vs. >60 years)

361 (66.6 %)/181 (33.4 %)

 Hepatitis B (+/−)

421 (77.7 %)/118 (22.3 %)

 Hepatitis C (+/−)

39 (7.2 %)/503 (92.8 %)

 AFP level (≤400 vs. >400 ng/mL)

414 (76.4 %)/128 (23.6 %)

 ALT level (≤40 vs. >40 U/L)

350 (64.6 %)/192 (35.4 %)

 AST level (≤40 vs. >40 U/L)

331 (61.1 %)/211 (38.9 %)

 TBIL level (≤17.5 vs. >17.5 μmol/L)

356 (65.7 %)/186 (34.3 %)

 ALB level (≤35 vs. >35 g/L)

22 (4.1 %)/520 (95.9 %)

 PT (≤14 vs. >14 s)

525 (96.9 %)/17 (3.1 %)

 Liver cirrhosis (+)

390 (72.0 %)/150 (28.0 %)

 Tumor size (≤5 vs. >5)

325 (60.0 %)/217 (40.0 %)

 No. of tumor (single vs. multiple)

473 (87.3 %)/69 (12.7 %)

 Microscopic portal vein thrombosis (+/−)

143 (26.4 %)/399 (73.6 %)

 Macroscopic vascular invasion (+/−)

54 (10.0 %)/488

 Operation time (min)

148 ± 55.6

 Blood lose (≤1000 vs. >1000 mL)

506 (93.4 %)/36 (6.6 %)

 Blood transfusion (n)

60 (11.1 %)

Type of liver resection (minor vs. major)

398 (73.4 %)/144 (26.6 %)

 Minor (Clavien grade <3)

86 (15.9 %)

 Major (Clavien grade ≥3)

23 (4.2 %)

Hospital stay (day)

13.8 ± 11.6

Child-Pugh grade (A/B)

538 (99.3 %)/4 (0.7 %)

BCLC stage (0/A/B/C)

76 (14.0 %)/208 (38.4 %)/204 (37.6 %)/54 (10 %)