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Table 3 Multivariate analysis for the association of successful intubation with cardiopulmonary resuscitation quality metrics and the number of intubation by the type of airway during cardiopulmonary resuscitation

From: Compromised cardiopulmonary resuscitation quality due to regurgitation during endotracheal intubation: a randomised crossover manikin simulation study

  Oropharyngeal regurgitation Clean airway
Variables HR 95% CI P HR 95% CI P
CCF 0.99 0.95–1.03 0.603 1.03 0.96–1.10 0.407
Compression depth 0.47 0.24–0.91 0.026 1.08 0.40–2.89 0.886
Compression rate 1.02 0.98–1.05 0.331 1.02 0.96–1.07 0.565
The longest interruption 0.86 0.74–1.01 0.061 1.10 0.79–1.55 0.569
The number of intubation 1.10 0.73–1.65 0.662 0.98 0.51–1.87 0.954
  1. Abbreviation: CCF chest compression fraction, HR hazard ratio, CI confidence interval