Table 3 Patients' clinical characteristics (aged < 75 years)

Gender male/female, (%)

16/10 (61.5/38.5)

54/52 (50.9/49.1)

0.385

Age mean, years

64.4 ± 9.5

65.5 ± 9.8

0.553

 Magnesium (mg/dL)

2.1 ± 0.1

2.2 ± 0.2

<0.001

 Sodium (mEq/dL)

140.9 ± 3.1

141.2 ± 1.8

0.829

 Potassium (mEq/dL)

4.2 ± 0.3

4.3 ± 0.4

0.419

 Blood urea nitrogen (mg/dL)

14.1 ± 3.0

15.9 ± 3.8

0.023

 eGFR (mL/min)

73.6 ± 13.0

70.2 ± 23.8

0.096

 Creatinine (mg/dL)

0.8 ± 0.2

0.8 ± 0.3

0.501

 Albumin (g/dL)

4.3 ± 0.3

4.3 ± 0.3

0.745

 Diabetes mellitus

12/14 (46.2/53.8)

67/39 (63.2/36.8)

0.124

 Hypertension

18/8 (69.2/30.8)

72/34 (67.9/32.1)

1.000

 Hyperlipidemia

13/13 (50.0/50.0)

54/52 (50.9/49.1)

1.000

 Liver disease

0/26 (0.0/100.0)

6/100 (5.7/94.3)

0.598

 Renal disease

0/26 (0.0/100.0)

7/99 (6.6/93.4)

0.344

 Allergic disease

0/26 (0.0/100.0)

7/99 (6.6/93.4)

0.344

 Respiratory disease

0/26 (0.0/100.0)

4/102 (3.8/96.2)

0.585