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Table 2 Correlation of mPAP with mechanical ventilation variables

From: Mechanical ventilation variables associated with high pulmonary artery pressures in ARDS patients: a post hoc analysis

Variable

Unadjusted

Adjusted for clustering

N

Correlation

p value

Correlation (robust SE)

p value**

P/F ratio*

 − 0.37

 < 0.001

 − 0.37 (0.04)

 < 0.001

754

Blood pH level

 − 0.33

 < 0.001

 − 0.33 (0.04)

 < 0.001

756

PaCO2 level*

0.24

 < 0.001

0.24 (0.04)

 < 0.001

755

Tidal volume

 − 0.10

0.004

 − 0.10 (0.04)

0.02

805

PEEP*

0.36

 < 0.001

0.36 (0.04)

 < 0.001

826

Respiratory rate

0.28

 < 0.001

0.28 (0.04)

 < 0.001

821

Plateau pressure*

0.35

 < 0.001

0.34 (0.04)

 < 0.001

765

Peak airway pressure

0.29

 < 0.001

0.29 (0.04)

 < 0.001

810

Mean airway pressure*

0.38

 < 0.001

0.38 (0.04)

 < 0.001

766

Driving pressure

0.18

 < 0.001

0.18 (0.05)

 < 0.001

764

Mechanical power*

0.25

 < 0.001

0.25 (0.04)

 < 0.001

749

Mechanical power indexed to compliance

0.31

 < 0.001

0.1 (0.04)

 < 0.001

749

  1. *Log-transformed variable
  2. **Adjusted for clustering of results within patients