Table 2 Risk factors for the intraoperative complication, assigned points and statistical analysis [26]

Number of patients

128

/

23 (17.9%)

105 (82.1%)

/

Neoadjuvant chemotherapy

22 (17.2%)

1

7

15

0.073

Previous open liver resection

2 (1.6%)

5

1

1

0.328

Malignant lesion

89 (69.5%)

2

22

67

0.003

 Lesion size < 3 cm

48 (37.5%)

0

1

47

0.938

 Lesion size 3–5 cm

44 (34.4%)

2

9

35

0.596

 Lesion size >5 cm

36 (28.1%)

3

13

23

0.001

 Minor

93 (72.6%)

0

9

84

< 0.001

 Technically major

18 (14.1%)

2

6

12

0.094

 Anatomically major

17 (13.3%)

4

8

9

0.003