Table 4 Factors associated with postoperative complications (Adjusted multivariable analysis)

Sex (male)

1.86 (1.00–3.49)

0.049*

1.63 (0.85–3.13)

0.14

Age/10

1.27 (0.99–1.64)

0.054

1.34 (1.05–1.74)

0.020*

1.30 (0.91–1.92)

0.15

1.35 (0.92–2.02)

0.12

BMI (kg/m²)

0.96 (0.89–1.04)

0.37

0.99 (0.91–1.07)

0.75

1.03 (0.91–1.16)

0.66

0.93 (0.81–1.04)

0.21

ASA-PS II^a

1.55 (0.72–3.58)

0.27

1.35 (0.62–3.13)

0.46

1.78 (0.45–11.8)

0.45

1.49 (0.54–4.28)

0.45

ASA-PS III ^a

1.20 (0.22–5.10)

0.82

0.75 (0.10–3.60)

0.74

0.70 (0.03–9.07)

0.79

1.26 (0.06–10.5)

0.85

sAs

1.10 (0.90–1.38)

0.37

1.09 (0.88–1.37)

0.44

1.08 (0.81–1.47)

0.62

1.10 (0.81–1.57)

0.56

Anesthesia time (hours)

1.55 (1.35–1.80)

p < 0.001*

1.51 (1.32–1.75)

p < 0.001*

1.47 (1.23–1.77)

p < 0.001*

1.62 (1.30–2.06)

p < 0.001*

Unchanged drinking habit ^b

0.93 (0.41–2.07)

0.87

Improved drinking habit ^b

0.87 (1.45–1.66)

0.66

Unchanged smoking habit ^b

1.51 (0.32–5.18)

0.56

Improved smoking habit ^b

0.91 (0.41–1.95)

0.82

K6 score

1.08 (1.00–1.16)

0.033*

1.08 (1.00–1.15)

0.041*

1.04 (0.93–1.16)

0.52

1.12 (1.02–1.23)

0.017*

AUDIT score

1.00 (0.95–1.06)

0.88

1.00 (0.94–1.06)

0.99

1.02 (0.88–1.13)

0.76

FTND score

1.08 (0.92–1.25)

0.31

1.12 (0.95–1.31)

0.18

0.73 (0.37–1.16)

0.21

R²

18%

17%

16%

17%

AUC

81%

80%

79%

78%

Accuracy

89%

89%

83%

93%