Table 3.
Factors associated with ventilator-associated pneumonia (VAP) in mechanically ventilated adults with COVID-19.
Univariable HR [95%CI] | p-Value | Multivariable HR [95%CI] | p-Value | |
---|---|---|---|---|
Age, per 10 years | 0.99 [0.95–1.04] | 0.72 | 0.96 [0.91–1.02] | 0.18 |
Male gender | 1.22 [1.07–1.38] | 0.002 | 1.26 [1.09–1.46] | 0.002 |
Active smoking | 0.90 [0.69–1.17] | 0.44 | 0.83 [0.61–1.12] | 0.22 |
Body mass index ≥ 30 kg.m−2 | 1.04 [0.91–1.20] | 0.57 | 1.05 [0.92–1.20] | 0.45 |
Treated hypertension | 1.08 [0.98–1.20] | 0.12 | 1.00 [0.88–1.13] | 0.97 |
Chronic heart failure | 1.02 [0.77–1.35] | 0.89 | 1.07 [0.78–1.49] | 0.67 |
COPD | 1.09 [0.83–1.44] | 0.54 | 1.18 [0.92–1.50] | 0.20 |
Diabetes | 1.19 [1.07–1.33] | 0.002 | 1.08 [0.94–1.23] | 0.27 |
Chronic renal failure | 1.19 [1.00–1.41] | 0.05 | 1.10 [0.89–1.36] | 0.37 |
Immunodeficiency | 1.17 [1.00–1.38] | 0.06 | 1.09 [0.89–1.34] | 0.39 |
Concomitant bacterial pneumonia at admission | 1.51 [1.28–1.78] | <0.001 | 1.36 [1.10–1.67] | 0.004 |
Non-respiratory SOFA score at intubation, per point | 1.04 [1.02–1.06] | <0.001 | 1.02 [1.00–1.05] | 0.09 |
PaO2/FiO2 at intubation, per 10 mmHg | 0.99 [0.98–0.995] | 0.002 | 0.99 [0.98–0.99] | 0.001 |
Leucopenia or hyperleucocytosis at intubation | 1.10 [0.99–1.22] | 0.08 | 1.07 [0.95–1.21] | 0.24 |
Neuromuscular blockersa | 0.95 [0.85–1.07] | 0.39 | 0.89 [0.76–0.998] | 0.046 |
Prone positioninga | 1.14 [1.03–1.27] | 0.02 | 1.11 [0.98–1.27] | 0.10 |
Corticosteroids useb | 1.39 [1.23–1.57] | <0.001 | 1.27 [1.09–1.47] | 0.002 |
At least during 48 h following intubation and before VAP diagnosis.
At least during 48 h following intubation and before VAP diagnosis at a dose greater than or equal to 40 mg prednisone equivalent.