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Table 6 Odds ratio derived from univariate analysis of individual respiratory variables on day 1 with mortality as the outcome (n = 223).

From: Analysis of ventilatory ratio as a novel method to monitor ventilatory adequacy at the bedside

 

Odds ratio

CI

P value

Ventilatory ratio

2.31

1.30 - 4.11

< 0.01

PaCO2 (kPa)

1.13

0.92 - 1.40

0.22

Minute ventilation (mL.min-1)

1.00

1.00 - 1.01

0.01

Peak inspiratory pressure (cmH2O)

1.07

1.02 - 1.11

< 0.01

PaO2 (kPa)

1.02

0.98 - 1.06

0.23

PaO2/FiO2 ratio

0.98

0.97 - 1.01

0.08

PEEP (cmH2O)

1.13

1.01 - 1.27

0.03

Dynamic compliance

0.99

0.97 - 1.00

0.1

  1. PaCO2, partial pressure of carbon dioxide in arterial blood; PaO2, partial pressure of oxygen in arterial blood; FiO2, fractional concentration of inspired oxygen; PEEP, positive end-expiratory pressure.
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Critical Care

ISSN: 1364-8535