Table 2 Comparison of the primary and secondary outcomes before and after sIPTW

Clinically-relevant pancreatic fistula

177 (19.5%)

108 (9.9%)

2.19 (1.70–2.84)

< 0.001

161 (17.9%)

122 (11.2%)

1.73 (1.34–2.22)

< 0.001

Any pancreatic fistula

570 (62.7%)

586 (53.9%)

1.44 (1.20–1.72)

< 0.001

547 (60.6%)

606 (55.8%)

1.21 (1.01–1.45)

0.034

Postoperative pulmonary complications

34 (3.7%)

18 (1.7%)

2.31 (1.30–4.12)

0.004

36 (4.0%)

19 (1.8%)

2.34 (1.33–4.10)

0.003

Wound problems

125 (13.8%)

57 (5.2%)

2.88 (2.08–4.00)

< 0.001

123 (13.6%)

58 (5.3%)

2.79 (2.01–3.86)

< 0.001

Any major postoperative complications

248 (27.3%)

142 (13.1%)

2.50 (1.99–3.14)

< 0.001

238 (26.3%)

154 (14.2%)

2.17 (1.73–2.72)

< 0.001

Length of postoperative hospital stay, days

18.2 (18.4)

14.9 (8.3)

3.32 (2.10–4.54)

< 0.001

18.1 (18.2)

15.1 (8.5)

3.06 (1.79–4.33)

< 0.001

Unplanned readmission within 30 days

52 (5.8%)

59 (5.4%)

1.06 (0.72–1.56)

0.772

55 (6.1%)

64 (5.9%)

1.04 (0.72–1.51)

0.843

1-year mortality

88 (9.7%)

117 (10.8%)

0.89 (0.66–1.19)

0.432

96 (10.6%)

105 (9.7%)

1.10 (0.82–1.48)

0.513