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Table 3 Cox and Fine–Gray regression models to evaluate risk of type of endotracheal tubes on ventilator-associated pneumonia suspicion and confirmation

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 0.47 (0.27–0.81) 0.007 0.53 (0.31–0.90) 0.02
 Antibiotic on intubation No 3.16 (1.83–5.48) < 0.0001 3.11 (1.81–5.32) < 0.0001
Occurrence of VAP
 Type of ETTs Coated 0.41 (0.19–0.88) 0.02 0.47 (0.23–0.99) 0.049
 Antibiotic on intubation No 3.49 (1.66–7.36) 0.001 3.23 (1.60–6.55) 0.001
  1. CI confidence interval; ETT endotracheal tube; HR hazard ratio; VAP ventilator-associated pneumonia