Variable

Coefficient

Standard Error

p-value

OddsRatio

[C.I. 95%]

ASA >2

−0.54

0.65

0.408

0.58

[0.16; 2.09]

DurationofSurgery >2 hours

−0.39

0.42

0.362

0.68

[0.30; 1.56]

Surgical Wound Classification: Contaminated or dirty/infected

−0.17

0.98

0.866

0.85

[0.12; 5.81]

NNIS Risk Index

0.55

0.71

0.444

1.73

[0.43; 7.00]

Modified NNIS Risk Index

1.04

0.41

0.011

2.82

[1.27; 6.26]

Constant

−4.63

0.42

0

0.01

0