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Table 1 Comparison of characteristics between patients with or without hyponatremia

From: Hyponatremia is a potential predictor of progression in radiation-induced brain necrosis: a retrospective study

Characteristics

Hyponatremia n = 32

Nonhyponatremia n = 103

P-Value

Serum sodium, mmol/L (mean ± SD)

129.3 ± 4.3

139.0 ± 2.4

< 0.001

Age, yrs. (mean ± SD)

52.0 ± 9.8

50.5 ± 10.0

0.465

Male

28 (87.5%)

75 (72.8%)

0.088

In-hospital days (M)

8.3 (4–20)

7.5 (1.8–23)

0.546

Hypertension

7 (21.9%)

16 (15.5%)

0.405

Epilepsy

3 (9.4%)

15 (14.6%)

0.648

Dyslipidemia

4 (12.5%)

11 (9.7%)

1.000

Cerebral infarction

5 (15.6%)

8 (7.8%)

0.330

Pulmonary infection

4 (12.5%)

3 (3.0%)

0.093

Paralysis of cranial nerves

7 (21.9%)

16 (15.5%)

0.405

Nasopharyngeal carcinoma

31 (96.9%)

95 (92.2%)

0.607

Glioma

1 (3.1%)

7 (6.8%)

0.734

Oral cancer

0 (0%)

1 (1.0%)

1.000

Baseline T1-weight gadolinium-contrast area (cm2)(mean ± SD)

5.1 ± 2.3

5.3 ± 3.8

0.810

BaselineT2-weighted area (cm2) (mean ± SD)

10.6 ± 5.5

10.4 ± 6.6

0.843

  1. M median, SD standard deviation