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Table 2 Direct and video laryngoscopy and HEAVEN criteria to predict failure of intubation on the first attempt

From: The HEAVEN criteria predict laryngoscopic view and intubation success for both direct and video laryngoscopy: a cohort analysis

Parameter Failure at First Intubation Attempt Failure of First Intubation Attempt without Desaturation
Direct Laryngoscopy Video Laryngoscopy Direct Laryngoscopy Video Laryngoscopy
Odds Ratio (95% CI) P Odds Ratio (95% CI) P Odds Ratio (95% CI) P Odds Ratio (95% CI) P
Hypoxemia 1.21 (0.81–1.83) 0.352 1.01 (0.76–1.34) 0.928 1.59 (1.01–2.51) 0.0478 1.60 (1.21–2.11) < 0.001
Extremes of size 2.19 (1.53–3.13) < 0.001 2.49 (1.99–3.12) < 0.001 1.77 (1.17–2.69) 0.008 1.72 (1.34–2.21) < 0.001
Anatomic 3.65 (2.55–5.23) < 0.001 3.15 (2.49–4.00) < 0.001 2.87 (1.92–4.28) < 0.001 2.22 (1.71–2.88) < 0.001
Vomit/blood/fluid 1.54 (1.18–2.02) 0.002 1.80 (1.50–2.17) < 0.001 1.70 (1.21–2.38) 0.002 1.95 (1.59–2.38) < 0.001
Exsanguination 1.74 (0.77–3.91) 0.180 1.24 (0.70–2.21) 0.456 2.48 (1.10–5.59) 0.028 1.55 (0.88–2.76) 0.132
Neck mobility 2.11 (1.76–2.21) < 0.001 1.51 (1.24–1.84) < 0.001 1.66 (1.17–2.35) 0.004 1.15 (0.93–1.42) 0.212
Total # criteria 1.97 (1.76–2.21) < 0.001 1.84 (1.71–1.98) < 0.001 1.92 (1.69–2.19) < 0.001 1.66 (1.53–1.80) < 0.001
  1. Multiple logistic regression analysis exploring the relationship between the individual HEAVEN criteria or the total number of HEAVEN criteria and failure to intubate on the first attempt with and without desaturation (adjusted for age, gender, clinical category, choice of paralytic, and location of the procedure)