Variable

SSI

Mean

Median

Standard Deviation

p-value

Age (Years)

Yes

62.3

64

20.5

0.29

No

65

67

16.4

Length of Hospital Stay Before Surgery (Days)

Yes

3.2

1

6.8

<0.001^*

No

1.6

0

5.4

Durationof Surgery (Hours)

Yes

2.7

2.5

1.2

0.158

No

2.5

2.3

1

Number of Professionals at Surgery

Yes

1.8

1

1

0.080^*

No

1.9

2

0.7

Numberof Hospital Admissions

Yes

1.4

1

0.8

0.216

No

1.3

1

0.7