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Table 4 Multivariate Regression Model for first attempt success

From: Video laryngoscopy improves intubation success and reduces esophageal intubations compared to direct laryngoscopy in the medical intensive care unit

Variable OR 95% CI P -value
Video laryngoscope as first device* 7.67 3.18 to 18.45 <0.001
Age 1.02 1.00 to 1.04 0.04
Gender** 2.09 1.07 to 4.07 0.02
Method    
  No Medications (Reference)   
  RSI 0.72 0.08 to 6.00 0.76
  Sedation only 0.24 0.02 to 2.42 0.22
Operator Specialty    
  Non-intensivist (Reference)   
  Pulmonary and Critical Care Medicine 5.59 1.09 to 28.64 0.04
Operator PGY    
  1 (Reference)   
  2 3.19 0.97 to 10.51 0.06
  3 0.66 0.20 to 2.13 0.48
  4 0.53 0.06 to 4.33 0.55
  5 0.36 0.04 to 3.22 0.36
  6 0.51 0.05 to 4.88 0.56
  Attending 3.0 0.11 to 77.74 0.51
Difficult Airway Predictors    
  Total DACs 0.44 0.13 to 1.51 0.20
  Blood 1.79 0.39 to 8.33 0.45
  Vomit 0.84 0.15 to 4.66 0.84
  Cervical Immobilization 6.79 0.36 to 125.46 0.20
  Airway edema 0.60 0.11 to 3.25 0.55
  Small mandible 1.05 0.22 to 5.03 0.95
  Obesity 1.39 0.29 to 6.77 0.68
Large tongue 3.31 0.64 to 17.09 0.15
Short neck 1.63 0.36 to 7.25 0.52
Hemodynamic instability 1.58 0.37 to 6.46 0.52
  Hypoxemia 2.78 0.65 to 11.85 0.16
  Limited mouth opening 2.74 0.45 to 16.65 0.27
  Secretions 1.46 0.27 to 7.7 0.65
  1. In this multivariate regression model controlling for the confounding variables, the odds ratio of first attempt success using VL was 7.67, compared to DL. See text for explanation.
  2. *Reference = DL. **Reference = Male. DACs, Difficult airway characteristics; PGY, post-graduate year.