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Table 3 Outcomes of care

From: The epidemiology of intensive care unit-acquired hyponatraemia and hypernatraemia in medical-surgical intensive care units

  Serum sodium category  
Measures Acquire hyponatraemia
(n = 917)
Always normal
(n = 5068)
Acquire hypernatraemia
(n = 2157)
p value
ICU length of stay, median (IQR), d 6 (3 to 12) 2 (1 to 4) 7 (4 to 13) <0.001
Hospital length of stay, median (IQR), d 25 (14 to 50) 12 (7 to 24) 24 (14 to 51) <0.001
ICU mortality, number (%) 164 (18) 456 (9) 488 (23) <0.001
Hospital mortality, number (%) 255 (28) 799 (16) 723 (34) <0.001
  1. †ICU and hospital length of stay for patients who survive to hospital discharge.
  2. ‡p values calculated by multivariable linear and logistic regression for comparisons of patients who acquire hyponatraemia or hypernatraemia with patients who always have normal serum sodium levels.
  3. ICU = intensive care unit, IQR = interquartile range.