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Table 2 Laboratory data at presentation

From: A low initial serum sodium level is associated with an increased risk of overcorrection in patients with chronic profound hyponatremia: a retrospective cohort analysis

Parameters

Missing

Total

(n = 56)

No-Overcorrection

(n = 45)

Overcorrection

(n = 11)

p-value

Blood pressure, mmHg

 Systolic

0

130 (112–152)

127 (111–148)

142 (140–162)

0.034

 Diastolic

0

70 (62–83)

70 (60–82)

78 (72–89)

0.137

Laboratory data

 Blood analysis

  Serum Na, mEq/L

0

115 (111–119)

116 (111–119)

107 (104–113)

0.012

  Serum K, mEq/L

0

4.0 (3.4–4.5)

4.0 (3.7–4.7)

3.6 (3.3–4.1)

0.112

  Serum BUN, mg/dL

0

12.5 (9.7–18.2)

14.2 (10.1–22.9)

10.1 (7.7–10.8)

0.023

  Serum Cr, mg/dL

0

0.65

(0.44–0.94)

0.66

(0.46–1.12)

0.47

(0.42–0.73)

0.270

  Serum TP, mg/dL

6

6.4 (6.0–7.3)

6.4 (6.0–7.3)

7.3 (6.3–7.8)

0.260

  Serum Glu, mg/dL

8

123 (98–144)

124 (94–144)

120 (115–138)

0.741

 Urinary analysis

0

    

  Urine Na, mEq/L

0

41 (20–65)

41 (24–66)

33 (17–46)

0.343

  Urine K, mEq/L

0

28 (14–44)

33 (17–44)

13 (10–31)

0.058

  Urine Na + K, mEq/L

0

74 (49–114)

75 (52–115)

57 (28–97)

0.101

  Urine Osm, mOsm/kg H2O

1

332

(245–493)

336

(265–502)

217

(137–359)

0.029

  1. BUN blood urea nitrogen, Cr creatinine, Glu glucose, K potassium, Na sodium, Osm osmolality, and TP total protein
  2. Continuous variables as medians (25–75 percentiles)