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Table 3 Multivariate analysis of factors associated with SSI after ORIF of closed tibial plateau fracture

From: Incidence and risks for surgical site infection after closed tibial plateau fractures in adults treated by open reduction and internal fixation: a prospective study

Variables

OR

95%CI (lower limit)

95%CI (upper limit)

P

Preoperative duration

2.282

0.880

5.915

0.090

Bone grafting(yes)

   

0.002*

 Autograft

6.380

2.155

18.886

0.001*

 Allograft

3.215

1.009

10.247

0.048*

Operative duration (minutes)

3.544

0.958

13.108

0.058

Fracture type (Schartzker V–VI)

8.129

2.961

22.319

0.000*

AST (>40 U/L)

5.500

2.191

13.807

0.000*

WBC (>10*109/L)

2.498

1.025

6.092

0.044*

AG (mmol/L)

   

0.078

 <8

1.878

0.694

5.082

0.214

 >16

8.194

1.101

60.980

0.040*

  1. Abbreviation and notes: AST aspartate aminotransferase; WBC white blood cell; AG anion gap
  2. *Significant variables