Table 4 Risk Assessment of Intraopeartive AD

Variables

Unadjusted OR

95% ^aCI

P value

Use of Stylet

0.35

0.14–0.87

0.03

Duration of Operation

1.71

1.26–2.33

0.00

ASA

1.08

0.58–2.00

0.81

BMI

1.03

0.90–1.17

0.69

Tube Depth

1.10

0.88–1.38

0.39

Variables

adjusted OR

95% ^aCI

P value

Use of Stylet

0.23

0.07–0.74

0.01

Duration of Operation

1.89

1.31–2.74

0.00

ASA

1.05

0.90–1.23

0.51

BMI

1.01

0.48–2.11

0.99

Tube Depth

1.23

0.94–1.62

0.14