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Table 3 Outcome and natremia evolution in the emergency department and during hospitalization

From: Undercorrection of hypernatremia is frequent and associated with mortality

Outcome n = 85
All patients  
Outcome after emergency department  
Hospitalization 92%
Back to institution 6%
Died at emergency department 1%
Unknown 1%
In hospital mortality 24%
Mean time to death (days) 5.8 ± 6
Hospitalized patients n = 78
Natremia at admission (mmol/L) 158 ± 8
On the next day (n = 59)  
    Time lag between initial natremia and next day natremia 17 h21 ± 6 h28
    Mean natremia (mmol/L) 156 ± 7
    Mean correction speed (mmol/L/h) −0.18 ± 0.39
    Worsened natremia 34%
    Same natremia as at admission 8%
    Improved natremia 58%
At a less than 0.5 mmol/L/h speed 65%
At a 0.5 to 1 mmol/L/h speed 32%
At a more than 1 mmol/L/h speed 3%
On the third day (n = 53)  
    Time lag between initial natremia and 3rd day natremia (days) 2,47 ± 0.72
    Mean natremia (mmol/L) 150 ± 8
    Mean correction speed (mmol/L/h) −0.15 ± 0.19
    Worsened natremia 11%
    Same natremia as at admission 6%
    Improved but not normalized natremia 51%
    Normalized natremia 32%
Mean hospitalization time (days) 13.1 ± 13
  1. Data are given as mean ± standard deviation or percentages.