Table 2 Laboratory findings of the study patients according to hyponatremia (N = 565)

Hemoglobin (median, IQR, g/L)

127 (112–144)

132 (116–144)

Hematocrit (mean ± SD, L/L)

0.39 ± 0.07

0.4 ± 0.07

Urea (median, IQR,mmol/L)

10.5 (7–15.5)

8.7 (6.3–12.2)

Serum creatinine (median, IQR, mg/dL)

1.4 (1.1–1.9)

1.3 (1–1.7)

Serum potassium (mean ± SD, mmol/L)

4.3 ± 0.7

4.1 ± 0.6

Serum chloride (mean ± SD, mmol/L)

97.2 ± 5.5

101.2 ± 4.4

Cardiac troponin I (median, IQR, ng/ml)

0.051 (0.020–0.108)

0.039 (0.018–0.089)

Total cholesterol (median, IQR, mmol/L)

3.4 (3.1–4.9)

4.3 (3.5–5)

HDL (median, IQR, mmol/L)

1.3 (0.9–1.8)

1.3 (1.3–1.8)

LDL (median, IQR, mmol/L)

2.4 (1.9–3.2)

2.5 (1.9–3.1)

Triglycerides (median, IQR, mmol/L)

1.8 (1.4–2.5)

1.8 (1.2–2.4)

Total bilirubin (median, IQR, μmol/L)

15.9 (11.0–21.0)

14.3 (11.2–18.9)

Direct bilirubin (median, IQR, μmol/L)

4.0 (2.4–7.0)

4.0 (2.8–6.0)

Indirect bilirubin (median, IQR, μmol/L)

11.0 (8.6–13.9)

10.2 (8.1–13.1)

Serum uric acid (median, IQR, μmol/L)

476 (381–574)

440 (367–545)

AST (median, IQR, μmol/L)

27.0 (19.0–37.0)

24.0 (19.0–33.0)

ALT (median, IQR, μmol/L)

23.0 (15.8–33.0)

23.0 (17.0–34.3)

GGT (median, IQR, μmol/L)

45.0 (25.0–97.0)

39.0 (23.0–82.0)