Landing time after operation (days)

Postoperative infection rate (%)

Length of hospital stay (days)

Second operation (example)

Group A

21.0 ± 7.0

2.94

14.0 ± 6.0

1

Group B

7.0 ± 2.0

0

12.0 ± 5.0

0

T value

7.24

0.873

2.41

0.873

p-value

<0.05

>0.05

<0.05

>0.05