Table 2.
Trend of serum sodium concentration during the initial 10 days after admission
| Day |
Hyponatremia
|
Normal
|
Hypernatremia
|
|||
|---|---|---|---|---|---|---|
| Prevalence | 95% CI | Prevalence | 95% CI | Prevalence | 95% CI | |
| 1 | 52.5 | 42.7 - 62.3 | 40.6 | 31.0 - 50.2 | 6.9 | 1.9 - 11.9 |
| 2 | 58.4 | 48.7 - 68.1 | 37.6 | 28.1 - 47.1 | 4.0 | 0.1 - 7.8 |
| 3 | 53.1 | 43.1 - 63.2 | 40.6 | 30.7 - 50.5 | 6.3 | 1.4 - 11.1 |
| 4 | 57.6 | 47.4 - 67.8 | 38.0 | 28.1 - 48.0 | 4.3 | 0.2 - 8.5 |
| 5 | 55.2 | 44.6 - 65.7 | 41.4 | 31.0 - 51.8 | 3.4 | 0 - 7.3 |
| 6 | 58.1 | 46.8 - 69.4 | 31.1 | 20.4 - 41.7 | 10.8 | 3.7 - 17.9 |
| 7 | 53.4 | 40.5 - 66.4 | 39.7 | 26.9 - 52.4 | 6.9 | 0.3 - 13.5 |
| 8 | 53.6 | 40.4 - 66.8 | 42.9 | 29.8 - 56.0 | 3.6 | 0 - 8.5 |
| 9 | 45.5 | 30.5 - 60.4 | 45.5 | 30.5 - 60.4 | 9.1 | 0.5 - 17.7 |
| 10 | 43.9 | 28.5 - 59.3 | 51.2 | 35.7 - 66.7 | 4.9 | 0 - 11.6 |
| Total | 53.7 | 50.2-57.2 | 40.3 | 36.8-43.8 | 6.0 | 5.3-7.7 |