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Table 2 Mortality in patients with and without hyponatremia

From: The prevalence and mortality of hyponatremia is seriously underestimated in Chinese general medical patients: an observational retrospective study

 

Sodium Concentration (mmol/L)

 

≥135 (n = 127,388)

<135 (n = 26,690)

130–134 (n = 20,076)

125–129 (n = 5035)

120–124 (n = 1355)

<120 (n = 524)

In-hospital mortality (%)

0.48

6.15

3.57

11.36

19.63

20.23

Crude

1 (ref)

13.5 (12.3–14.8)

7.6 (6.8–8.5)

26.4 (23.4–29.6)

50.3 (43.0–58.7)

52.2 (41.6–65.5)

Age-adjusted

1 (ref)

9.8 (8.8–10.7)

5.7 (5.1–6.4)

18.0 (16.0–20.4)

34.1 (29.1–40.1)

35.6 (28.1–45.0)

Age, gender-adjusted

1 (ref)

9.6 (8.7–10.5)

5.6 (5.0–6.3)

17.6 (15.6–19.9)

33.4 (28.4–39.2)

34.8 (27.5–44.1)

Multivariable-adjusted

1 (ref)

8.1 (7.4–8.9)

4.8 (4.3–5.4)

14.4 (12.7–16.3)

28.9 (24.4–34.2)

32.9 (25.5–42.4)