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Table 4 Cox and Fine–Gray regression models to evaluate risk of type of endotracheal tubes on ventilator-associated pneumonia with impaired oxygenation

From: Prevention of ventilator-associated pneumonia by noble metal coating of endotracheal tubes: a multi-center, randomized, double-blind study

Variable Cox model Fine–Gray model
HR (95% CI) p value HR (95% CI) p value
VAP suspicion
 Type of ETTs Coated 0.25 (0.09–0.73) 0.01 0.32 (0.12–0.88) 0.03
 Antibiotic on intubation No 1.77 (0.62–5.03) 0.29 1.65 (0.59–4.58) 0.34
Occurrence of VAP
 Type of ETTs Coated 0.27 (0.09–0.80) 0.02 0.35 (0.13–0.97) 0.04
 Antibiotic on intubation No 1.94 (0.67–5.60) 0.22 1.80 (0.64–5.05) 0.27
  1. CI confidence interval; ETT endotracheal tube; HR hazard ratio; VAP ventilator-associated pneumonia