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Table 2 Correlation of independent variables with the presence of NDEs

From: The effect of carbon dioxide on near-death experiences in out-of-hospital cardiac arrest survivors: a prospective observational study

Variable NDEs group (mean ± SD) Non-NDEs group (mean ± SD) P
Age (years) 57.9 ± 13.8 51.8 ± 14.6 0.217
Time until ROSC (minutes) 8.3 ± 6.7 8.8 ± 5.3 0.772
petCO2 (kPa) 5.7 ± 1.1 4.4 ± 1.2 < 0.01
pO2 (kPa) 16.4 ± 11.1 25.3 ± 15.1 0.108
pCO2 (kPa) 6.6 ± 2.3 5.3 ± 1.4 0.041
Serum sodium (mmol/l) 139.2 ± 6.1 140.4 ± 4.0 0.439
Serum potassium (mmol/l) 4.6 ± 1.2 4.1 ± 0.8 0.118
  1. NDE, near-death experience; petCO2, initial partial end-tidal pressure of carbon dioxide; pCO2, partial pressure of carbon dioxide; pO2, partial pressure of oxygen; ROSC, return of spontaneous circulation; SD, standard deviation.