Skip to main content

Table 5 Factors associated with first-attempt intubation success

From: Video laryngoscopy versus direct laryngoscopy for first-attempt tracheal intubation in the general ward

Variable

Univariate analysis

p

Multivariate analysis

p

OR (95% CI)

OR (95% CI)

Age

0.992 (0.982, 1.002)

0.102

  

Female

1.031 (0.773, 1.375)

0.835

  

Video laryngoscopy

2.696 (2.026, 3.587)

< 0.001

3.058 (2.192, 4.267)

< 0.001

Medical department

1.346 (0.990, 1.831)

0.058

  

Systolic blood pressure (mmHg)

0.998 (0.994, 1.002)

0.380

  

Diastolic blood pressure (mmHg)

1.000 (0.994, 1.006)

0.931

  

Heart rate (beats per minute)

1.006 (1.001, 1.011)

0.021

1.006 (1.000, 1.011)

0.044

Oxygen saturation (%)

1.012 (0.999, 1.025)

0.076

  

Severe desaturation (SpO2 < 80%), n (%)

0.559 (0.347, 0.901)

0.017

0.521 (0.316, 0.861)

0.011

Predicted difficult airway

0.388 (0.280, 0.536)

< 0.001

0.344 (0.230, 0.514)

< 0.001

Experienced operator

3.039 (2.173, 4.250)

< 0.001

3.319 (2.284, 4.823)

< 0.001

Pre-treatment agent

1.127 (0.822, 1.545)

0.457

  

Sedatives

0.722 (0.427, 1.220)

0.223

  

Paralytic agents

0.857 (0.614, 1.197)

0.365

  

Cormack–Lehane grade

0.384 (0.301, 0.489)

< 0.001

0.459 (0.352, 0.599)

< 0.001

  1. OR odds ratio, CI confidence interval