Intensive care unit-acquired hyponatremia in critically ill medical patients

Table 4 Clinical Outcomes

Outcomes	ICU-acquired hyponatremia (n = 217)	Normonatremia (n = 1008)	P value
ICU mortality	33 (15.2)	145 (14.4)	0.751
28-day mortality	45 (20.7)	215 (21.3)	0.927
ICU length of stay	5.3 (3.0–10.9)	4.9 (3.0–9.3)	0.216
Renal replacement therapy^a	29 (13.4)	75 (7.4)	0.007
CRRT	25 (11.5)	70 (6.9)	0.035
Intermittent hemodialysis	9 (4.1)	16 (1.6)	0.029
Time to renal replacement therapy (days)	3.0 (2.0–9.0)	5.0 (3.0–9.0)	0.262

Data are presented as number (percentage) or as median (interquartile range)
ICU intensive care unit, CRRT continuous renal replacement therapy
^aSome patients were supported by both continuous renal replacement therapy and intermittent hemodialysis

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