Table 1 Patient characteristics in the ORH vs. LHR group

Sex (male), n (%)

46 (81%)

29 (73%)

0.34

Age, years

68.7 ± 1.4

70.7 ± 1.6

0.36

BMI (kg/m²)

23.2 ± 0.4

23.1 ± 0.5

0.77

Diagnosis

0.1

 CRLM, n (%)

23 (40%)

14 (34%)

 HCC, n (%)

29 (51%)

26 (65%)

 ICC, n (%)

5 (8.8%)

0 (0%)

Frequency of hepatectomy (2 times/≥3 times), n (%)

43 (75%)/14 (25%)

30 (75%)/10 (25%)

0.96

Tumor location (S1/S2-6/S7-8), n (%)

6 (11%)*/28 (49%)*/23 (40%)

0*/29 (73%)*/11 (28%)

0.02

Maximum tumor size (mm)

26.9 ± 1.7

21.7 ± 2.1

0.06

Number of tumors

2.1 ± 0.2

1.4 ± 0.3

0.04

Previous hepatectomy

 Laparoscopy/open, n (%)

7 (12%)/50 (88%)

30 (75%)/10 (25%)

< 0.001

 Hr0/HrS-1/Hr2-3, n (%)

21 (37%)*/19 (33%)/17 (30%)*

29 (73%)*/8 (20%)/3 (7.5%)*

0.002

Location with previous hepatectomy

 Same/opposite lobe, n (%)

28 (49%)/29 (51%)

28 (70%)/12 (30%)

0.04

 Adjacent/non-adjacent section, n (%)

43 (75%)/14 (25%)

32 (80%)/8 (20%)

0.6