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Table 4 Multivariate logistic regression analysis model for postoperative hypoxemia

From: Risk factors for postoperative hypoxemia in patients undergoing Stanford A aortic dissection surgery

Variables in the equation

 

B

S.E.

Wald

df

Sig.

Exp(B)

95.0% C.I. for EXP(B)

Lower

Upper

Step 1a

BMI

.020

.050

.151

1

.697

1.020

.924

1.125

 

Acute onset

-.859

.626

1.886

1

.170

.424

.124

1.444

 

Preoperative hypoxemia

2.682

.528

25.758

1

.000

14.611

5.187

41.158

 

CA time

.078

.023

11.286

1

.001

1.081

1.033

1.132

 

transfusion≥3000 ml

2.256

.425

28.211

1

.000

9.541

4.151

21.932

 

Constant

−4.368

1.386

9.924

1

.002

.013

  
  1. a. Variable(s) entered on step 1: BMI, acute onset of aortic dissection, preoperative hypoxemia, CA time, transfusion ≥3000 ml.
  2. BMI-body mass index.
  3. CA- circulatory arrest.