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Table 2 Unadjusted mortality rates

From: Associations of arterial carbon dioxide and arterial oxygen concentrations with hospital mortality after resuscitation from cardiac arrest

Outcome   All patients PaCO2 group   PaO2 group  
  Hypocapnia Normocapnia Hypercapnia P value Hypoxia Normoxia Hyperoxia P value
Intensive care unit mortality 2491 (47.4) 576 (50.7) 976 (42.7) 939 (51.2) <0.001 244 (58.4) 2171 (46.2) 76 (52.8) <0.001
In-hospital mortality 2833 (53.9) 663 (58.4) 1129 (49.3) 1041 (56.8) <0.001 266 (63.6) 2484 (52.9) 83 (57.6) <0.001
  1. Data presented as total number (percentage) per group. P-values for group comparisons using Chi-squared test