Table 3 Postoperative results before and after propensity score matching (PSM)

Hospital stay (days)

Median (interquartile range)

9 [7–15]

7 [6–12.75]

0.15

9 [6–14.25]

7 [6–11]

0.09

Reoperation (%)

4 (3.1%)

0 (0%)

0.57

3 (5%)

0 (0%)

0.28

Rehospitalization (%)

15 (11.5%)

4 (8.5%)

0.78

4 (7.7%)

4 (11.8%)

0.71

Overall morbidity (%)

71 (54.2%)

20 (42.6%)

0.17

32 (53.3%)

13 (35.1%)

0.09

Dindo-Clavien (%)

 I–II

44 (33.6%)

9 (19.1%)

0.07

21 (35%)

5 (13.5%)

0.03

 III–IV

13 (9.9%)

11 (23.4%)

0.03

5 (8.3%)

8 (21.6%)

0.07

Perioperative mortality (%)

14 (10.7%)

0 (0%)

0.02

6 (10%)

0 (0%)

0.08

Liver-related complications

 Hemorrhage (%)

4 (3.1%)

1 (2.1%)

1

1 (1.7%)

1 (2.7%)

1

 Biliary fistula (%)

17 (13%)

5 (10.6%)

0.80

8 (13.3%)

5 (13.5%)

1

 Ascites (%)

16 (12.2%)

4 (8.5%)

0.60

9 (15%)

2 (5.4%)

0.20

 Encephalopathy (%)

4 (3.1%)

1 (2.1%)

1

3 (5%)

0 (0%)

0.28

Size of largest lesion (mm)

Median (interquartile range)

41.5 [22–80]

51.5 [25.75–75.75]

0.35

50 [22–102.5]

55 [25–78]

0.69

Surgical margins (%)

Free

115 (87.8%)

40 (85.1%)

0.62

55 (91.7%)

34 (91.9%)

1

Margin width (mm)

Median (interquartile range)

5 [1–9.5]

15 [5–77.5]

0.0002

5 [2–9.5]

10 [5–25]

0.03