Dysnatremia, its correction, and mortality in patients undergoing continuous renal replacement therapy: a prospective observational study

Table 2 Odds ratios for 30-day mortality according to the concentration of serum sodium

	Univariate		Multivariate^a
Group	OR (95 % CI)	P	OR (95 % CI)	P
Moderate to severe hypoatremia	1.91 (1.197–3.033)	0.007	3.61 (1.438–9.049)	0.006
Mild hyponatremia	1.65 (1.047–2.610)	0.031	2.45 (1.051–5.705)	0.038
Normonatremia	1 (Reference)		1 (Reference)
Mild hypernatremia	1.03 (0.560–1.908)	0.917	1.06 (0.461–2.438)	0.890
Moderate to severe hypernatremia	2.32 (1.203–4.453)	0.012	2.94 (1.119–7.722)	0.029

^aAdjusted for age, sex, enrollment year, weight, cause of acute kidney injury, dialysis dose, need for mechanical ventilation, use of vasoactive drugs, chronic kidney disease, Charlson Comorbidity Index, APACHE II score, creatinine, albumin, urine output, fluid balance, and onset of dysnatremia
OR odds ratio, CI confidence interval

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