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Table 5 Outcome of patients with high and low values of PCO2 gap on ICU admission

From: Central venous-to-arterial carbon dioxide difference as a prognostic tool in high-risk surgical patients

Variables

PCO2 gap ≥6 mmHg

PCO2 gap <6 mmHg

P value

(n = 78)

(n = 37)

Total duration of MV, days

2.0 (0.0-3.2)

0.0 (0.0-0.0)

<0.001

Length of ICU stay, days

6.0 (4.0-8.2)

5.0 (4.0-7.5)

0.287

Length of hospital stay, days

22.5 (17.0-32.2)

16.0 (13.0-23.5)

0.002

Organ failure

46 (59.0%)

8 (21.6%)

< 0.001

28-day mortality

9 (11.5%)

0

0.056

  1. Areas under the curve are 0.86; 0.82; 0.67; 0.67 and 0.57, respectively. Data are presented as medians (interquartile range) or absolute value (%). Significant P values are indicated in bold text. MV, mechanical ventilation; PCO2 gap, central venous-to-arterial difference in carbon dioxide.
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Critical Care

ISSN: 1364-8535