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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.