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Table 4 Cox regression model of survival analysis of variables for 30-day mortality

From: Emergency tracheal intubation during off-hours is not associated with increased mortality in hospitalized patients: a retrospective cohort study

  Hazard ratio 95.0% CI Sig.
Age (years) 1.096 0.656–1.830 0.727
Sex 1.491 0.877–2.535 0.140
BMI (kg/m2) 1.003 0.598–1.683 0.991
Time of ETI 1.327 0.730–2.413 0.354
Departments of ETI 0.401 0.247–0.653 0.000
Pre-ETI
 CPCR 1.389 0.316–6.101 0.663
 Consciousness 1.090 0.655–1.813 0.739
 MAP (mmHg) 2.761 0.867–8.789 0.086
 HR (mmHg) 1.043 0.548–1.986 0.898
 SI 1.214 0.701–2.105 0.489
Post-ETI
 CPCR 1.849 0.595–5.748 0.288
 ICU 0.312 0.176–0.554 0.000
  1. Abbreviation: CI Confidence interval, Sig significance, BMI Body mass index, ETI Emergent endotracheal intubation, CPCR Cardiopulmonary cerebral resuscitation, MAP Mean arterial pressure, HR Heart rate, SI Shock index, ICU Intensive care unit