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Table 2 Survivors vs. non-survivors

From: Sodium variability is associated with increased mortality in severe burn injury

Patient demographic

Survivors

Non-survivors

p value

Males

142

22

 

Females

41

7

1

Burn area (%TBSA)

29 ± 16

50 ± 25

< 0.01

Age

42 ± 16

59 ± 19

< 0.01

ICU stay (median days)

20 (13–38.5)

18 (8–36)

0.23

Mechanical ventilation (median days)

1 (0–10)

17 (7–36)

< 0.01

Acute renal failure

17 (9.2%)

21 (72%)

< 0.01

Sodium measurements (median)

20 (12–44.5)

35 (23–89)

0.04

Hyponatremic measurements (median)

9 (4–17.5)

13 (2 to 21)

0.79

Hypernatremic measurements (median)

0 (0)

2 (0–7)

< 0.01

Frequency of hyponatremia (median)

40% (24–62%)

20% (11–40%)

< 0.01

Frequency of hypernatremia (median)

0% (0%)

6% (0–8.6%)

< 0.01

Mean sodium concentration (meq/l)

135 ± 1.9

138 ± 3.4

< 0.01

Mean sodium standard deviation

2.7 ± 1

4 ± 1.5

< 0.01

Coefficient of variation

2.0 ± 0.7

2.85 ± 1.1

< 0.01

  1. Patient demographic. All mean values are mean ± standard deviation, all median values are median (interquartile range)
  2. TBSA total body surface area, ICU intensive care unit, meq/l milliequivalents per liter