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Table 3 Comparison of serum sodium concentration, arterial pH, PaCO 2 , and bicarbonate between survivors and non-survivors

From: Association of serum chloride concentration with outcomes in postoperative critically ill patients: a retrospective observational study

  Survivors (n = 89) Non-survivors (n = 9) p value
Na on POD 1, meq/L (IQR) 137 (136, 140) 134 (130, 141) 0.14
Na on POD 2, meq/L (IQR) 137 (134, 139) 135 (128, 137) 0.10
Arterial pH on POD 1 7.42 (7.40, 7.44) 7.43 (7.39, 7.47) 0.42
Arterial pH on POD 2 7.44 (7.41, 7.46) 7.46 (7.3, 7.48) 0.08
PaCO2 on POD 1, mmHg (IQR) 37.5 (35.3, 40.8) 34.2 (33.6, 39.0) 0.20
PaCO2 on POD 2, mmHg (IQR) 38.6 (36.0, 41.8) 36.8 (33.9, 38.7) 0.19
Bicarbonate on POD 1, mmol/L(IQR) 24.4 (23.1, 25.7) 24.6 (20.9, 25.9) 0.86
Bicarbonate on POD 2, mmol/L (IQR) 25.5 (24.1, 26.9) 25.8 (24.7, 26.5) 0.69
  1. POD postoperative day, Na serum sodium concentration, IQR interquartile range.