Table 3.
Comparison of serum sodium concentration, arterial pH, PaCO 2 , and bicarbonate between survivors and non-survivors
| Survivors (n = 89) | Non-survivors (n = 9) | pvalue | |
|---|---|---|---|
| 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 |
POD postoperative day, Na serum sodium concentration, IQR interquartile range.