Table 3 Summary of multivariate analysis with generalized estimating equation modeling for variables associated with (1) time to intubation, (2) the necessity of auxiliary manipulations, and (3) nasoIDS ≥ 4 during NTI.

From: Cervical spine immobilization does not interfere with nasotracheal intubation performed using GlideScope videolaryngoscopy: a randomized equivalence trial

 

y = time to intubation

y = necessity of auxiliary manipulations (vs. no necessity)

y = NasoIDS ≥ 4 (vs. < 4)

Estimate (beta)

SE

P

Adjusted OR (95% CI)

P

Adjusted OR (95% CI)

P

Intercept

 − 64.31

97.20

0.508

    

Cervical collar (Ref = control)

 − 4.48

5.97

0.452

0.53 (0.26–1.09)

0.083

0.94 (0.84–1.05)

0.280

Age

 − 0.16

0.27

0.550

1.05 (1.01–1.09)

0.007

1.00 (1.00–1.01)

0.716

Male (Ref = female)

 − 10.06

7.90

0.203

0.69 (0.24–1.98)

0.493

0.98 (0.84–1.14)

0.761

BMI

0.31

0.85

0.710

0.99 (0.88–1.10)

0.798

1.00 (0.94–1.02)

0.958

Neck scar/mass lesion

5.54

14.96

0.711

2.55 (0.41–15.8)

0.314

1.51 (1.14–2.00)

0.005

Inter-incisor gap

3.08

5.55

0.579

0.75 (0.37–1.51)

0.426

0.95 (0.85–1.05)

0.312

Thyromental distance

 − 1.97

6.24

0.752

0.58 (0.25–1.37)

0.215

0.91 (0.80–1.02)

0.1

Sternomental distance

2.71

2.79

0.331

1.52 (1.01–2.28)

0.044

1.05 (1.00–1.11)

0.062

Ratio of height to thyromental distance

1.02

2.49

0.683

0.89 (0.65–1.23)

0.495

0.99 (0.95–1.04)

0.797

Neck circumference

0.75

0.71

0.290

1.07 (0.94–1.21)

0.310

1.00 (0.99–1.02)

0.511

Modified Mallampati test (Ref = Class 1)

   Class 2

9.64

7.52

0.200

1.04 (0.42–2.56)

0.936

1.07 (0.93–1.24)

0.333

   Class 3

14.73

8.78

0.093

1.08 (0.38–3.08)

0.886

1.09 (0.92–1.29)

0.314

Upper lip bite test (Ref = Class 1)

   Class 2

14.07

6.55

0.032

2.29 (1.06–4.94)

0.036

1.11 (0.98–1.26)

0.095

   Class 3

24.33

13.43

0.070

6.12 (1.04–39.94)

0.045

1.46 (1.14–1.89)

0.003

Range of motion of the atlanto–occipital joint (Ref = Class 1 > 35°)

   Class 2 (22°–34°)

2.12

7.40

0.775

0.97 (0.40–2.38)

0.948

0.95 (0.82–1.09)

0.467

   Class 3 (12°–21°)

 − 21.91

17.23

0.204

1.15 (0.13–9.84)

0.900

0.73 (0.53–1.02)

0.061

  1. nasoIDS nasotracheal intubation difficulty scale.
Back to article page