Table 2 Full model of total risk scores for hospitalization diagnostic (ICD-10) codes, physician diagnostic (ICD-9) codes and physician procedure claims, adjusted for the study covariates

Hospitalization diagnostic score

2.12

1.91–2.20

Physician diagnostic score

1.88

1.75–2.02

Physician procedure score

1.45

1.31–1.56

Age < 65 years

1.74

1.40–2.16

Log-operation duration, min

1.52

1.30–1 .72

 General surgery

1.60

1.20–2.15

 Gynecology

1.19

0.80–1.76

 Orthopedics

0.77

0.53–1.11

 Plastics

2.37

1.59–3.51

 Vascular

1.75

1.12–2.68

 Other

Reference

Reference

Female

1.18

0.96–1 .47

 1

1.05

0.67–1.63

 2+

1.09

0.67–1.75

 0

Reference

Reference

 I

0.87

0.75–1.33

 II

1.21

0.80–1.80

 III

1.10

0.66–1.76

 IV

0.32

0.04–1.03

 V

Reference

Reference

Emergent case

0.99

0.79–1.20