Table 1.
Baseline characteristics balance study. sNa: serum sodium concentration.
| s[Na] < 143 mmol/L | s[Na] ≥ 143 mmol/L | p value | |
|---|---|---|---|
| Number of patients, n (%) | 50 (51) | 47 (49) | |
| Male gender, n (%) | 34 (68) | 29 (62) | 0.53 |
| Age, years | 66 [61–73] | 67 [57–77] | 0.57 |
| APACHE IV-score | 58 [44–77] | 68 [56–101] | 0.01 |
| SOFA score on admission | 6 [4–8] | 7 [4–10] | 0.16 |
| Reason for admission, n (%) | |||
| Cardiovascular surgery | 25 (50) | 14 (30) | 0.07 |
| Sepsis | 4 (8) | 7 (15) | |
| Elective surgery | 3 (6) | 2 (4) | |
| Emergency surgery | 10 (20) | 5 (11) | |
| Cardiopulmonary | 4 (8) | 8 (17) | |
| resuscitation | |||
| Miscellaneous | 4 (8) | 11 (23) | |
| Serum sodium on admission, mmol/L | 138 [136–140] | 138 [136–140] | 0.25 |
| Serum creatinine on admission, µmol/L | 93 [71–117] | 85 [69–113] | 0.55 |
| Serum urea on admission, mmol/L | 7 [5–7] | 6 [5–8] | 0.44 |
APACHE: Acute Physiology and Chronic Health Evaluation; SOFA: Sequential Organ Failure Assessment. Data are presented as median [IQR] or as absolute numbers (%).