Table 1 Baseline demographic and clinical characteristics according to the plasma vaspin level quartile

No. of patients

146

36

37

37

36

Plasma vaspin level (ng/mL)

0.54 ± 1.56

0.07 ± 0.03

0.14 ± 0.02

0.23 ± 0.05

1.72 ± 2.86

Age (year)

58.4 ± 11.8

55.6 ± 15.1

58.0 ± 10.0

59.9 ± 10.1

60.3 ± 11.3

0.077^a

Sex (M: F)

96:50

27:9

24:13

25:12

20:16

0.300^c

Blood pressure (mmHg)

 Systolic

140 ± 19

142 ± 20

138 ± 17

141 ± 20

140 ± 19

0.939^a

 Diastolic

76 ± 13

81 ± 16

74 ± 13

75 ± 10

74 ± 11

0.032^a

Primary renal disease, no. of patients (%)

0.562^c

 Diabetes mellitus

75 (51.4%)

15 (41.7%)

21 (56.8%)

17 (45.9%)

22 (61.1%)

 Hypertension

13 (8.9%)

2 (5.6%)

2 (5.4%)

7 (18.9%)

2 (5.6%)

 Glomerulonephritis

31 (21.2%)

9 (25.0%)

7 (18.9%)

7 (18.9%)

8 (22.2%)

 Polycystic kidney disease

3 (2.1%)

1 (2.8%)

0 (0.0%)

1 (2.7%)

1 (2.8%)

 Urological

6 (4.1%)

3 (8.3%)

2 (5.4%)

1 (2.7%)

0 (0.0%)

 Others

1 (0.7%)

0 (0.0%)

0 (0.0%)

1 (2.7%)

0 (0.0%)

 Unknown

12 (8.2%)

4 (11.1%)

4 (10.8%)

3 (8.1%)

1 (2.8%)

 Missing

5 (3.4%)

2 (5.6%)

1 (2.7%)

0 (0.0%)

2 (5.6%)

Major comorbidities, no. of patients (%)

 Diabetes Mellitus

90 (61.6%)

18 (50.0%)

24 (64.9%)

23 (62.2%)

25 (69.4%)

0.125^b

 Ischemic heart disease

39 (26.7%)

13 (36.1%)

7 (18.9%)

8 (21.6%)

11 (30.6%)

0.653^b

 Cerebrovascular accident

28 (19.2%)

12 (33.3%)

5 (13.5%)

6 (16.2%)

5 (13.9%)

0.054^b

 Peripheral vascular disease

12 (8.2%)

5 (13.9%)

0 (0.0%)

3 (8.1%)

4 (11.1%)

0.991^b

Charlson’s comorbidity scores

6.2 ± 2.5

6.2 ± 3.3

6.2 ± 2.3

6.0 ± 2.2

6.4 ± 2.3

0.835^a