Skip to main content

Table 2 Cox proportional hazards regression model with ICU mortality as outcome

From: Dynamic driving pressure associated mortality in acute respiratory distress syndrome with extracorporeal membrane oxygenation

Factors

Hazard ratio (95% CI)

p value

Univariate analysis

  

 Age

1.011 (0.998–1.025)

0.108

 Pulmonary contusion

0.417 (0.181–0.958)

0.039

 Aspiration pneumonia

0.405 (0.128–1.285)

0.125

 Diabetes mellitus

0.635 (0.373–1.083)

0.096

 Chronic liver disease

1.611 (0.931–2.788)

0.088

 Immunocompromised

1.731 (1.115–2.689)

0.015

 APACHE II score

1.032 (1.004–1.062)

0.027

 Lung injury score

0.596 (0.374–0.951)

0.030

 ARDS duration before ECMO

1.002 (1.001–1.003)

0.001

 Mean PEEP from day 1 to 3 on ECMO

0.942 (0.877–1.013)

0.106

 Mean dynamic driving pressure from day 1 to 3 on ECMO

1.052 (1.015–1.090)

0.005

 Mean dynamic compliance from day 1 to 3 on ECMO

0.971 (0.941–1.002)

0.069

Multivariate analysis

  

 Immunocompromised

1.957 (1.216–3.147)

0.006

 APACHE II score

1.039 (1.005–1.073)

0.023

 ARDS duration before ECMO

1.002 (1.000–1.003)

0.029

 Mean dynamic driving pressure from day 1 to 3 on ECMO

1.070 (1.026–1.116)

0.002

  1. APACHE Acute Physiology and Chronic Health Evaluation, ARDS acute respiratory distress syndrome, CI confidence interval, ECMO extracorporeal membrane oxygenation, ICU intensive care unit, PEEP positive end-expiratory pressure. Dynamic driving pressure: (peak inspiratory pressure—PEEP)