Table 3 Clinical characteristics of different red blood cell distribution width categories

RDW (%)

12.3 ± 0.6

13.2 ± 0.2

14.1 ± 0.5

<0.001

Age (years)

64.2 ± 8.7

61.0 ± 10.7

64.9 ± 9.8

0.038

Fellow-up (month)

11.0 ± 7.0

11.1 ± 4.1

11.4 ± 6.2

0.931

Male gender

55 (75.3)

53 (69.7)

43 (66.2)

0.488

ISR (%)

9 (12.3)

15 (19.7)

31 (47.7)

<0.001

Stent diameter (mm)

3.1 ± 0.2

3.1 ± 0.4

2.9 ± 0,3

0.028

Stent length (mm)

26.2 ± 6.0

27.3 ± 5.3

27.0 ± 5.6

0.510

Complex lesion^a (%)

31 (42.5)

29 (38.2)

31 (47.7)

0.521

 Hypertension

46 (63.0)

58 (76.3)

38 (58.5)

0.132

 Diabetes mellitus

17 (25.0)

27 (39.7)

24 (35.3)

0.156

 Total bilirubin (μmol/L)

12.4 ± 4.4

12.8 ± 4.7

12.0 ± 4.6

0.584

 Direct bilirubin (μmol/L)

4.4 ± 1.7

4.6 ± 2.0

4.6 ± 1.9

0.586

 Indirect bilirubin (μmol/L)

7.9 ± 2.9

8.2 ± 2.9

7.3 ± 3.0

0.200

 Hb (g/L)

138.3 ± 14.1

140.9 ± 14.3

132.0 ± 15.6

0.002

 WBC (10⁹/L)

7.7 ± 2.5

7.9 ± 3.1

7.6 ± 2.5

0.751

 BUN (mmol/L)

5.9 ± 1.8

5.8 ± 1.8

6.3 ± 2.5

0.350

 eGFR (ml/min)

85.6 ± 23.0

86.5 ± 23.6

81.4 ± 24.2

0.397

 TG (mmol/L)

2.0 ± 1.3

1.9 ± 1.1

2.0 ± 2.1

0.963

 HDL-C (mmol/L)

1.0 ± 0.2

1.0 ± 0.3

1.1 ± 0.3

0.257

 LDL-C (mmol/L)

2.6 ± 0.8

2.8 ± 0.8

2.7 ± 1.2

0.524

 ACEI or ARB

50 (68.5)

52 (68.4)

40 (61.5)

0.616

 β-Blocker

23 (31.5)

25 (32.9)

21 (32.3)

0.984

 Statin

63 (86.3)

68 (89.5)

54 (83.1)

0.542