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Table 1 Baseline and procedual characteristics

From: Impact of anemia on in-stent restenosis after percutaneous coronary intervention

Variable

Anemia

P value

Without anemia

P value

ISR

Non-ISR

ISR

Non-ISR

Male, n (%)

14 (3.7)

133 (34.6)

0.524

4 (1.0)

233 (60.7)

0.097

Age (years)

67.1 ± 10.9

62.4 ± 11.2

0.094

54.3 ± 10.4

62.1 ± 9.6

0.012

Current smoker, n (%)

7 (3.0)

81 (34.8)

0.457

5 (2.1)

140 (60.1)

0.525

BMI (kg/m2)

23.5 ± 3.7

24.6 ± 2.8

0.120

24.3 ± 2.7

24.4 ± 2.8

0.841

Hypertension, n (%)

10 (2.9)

106 (30.5)

0.367

7 (2.0)

224 (64.6)

0.696

Diabetes mellitus, n (%)

11 (9.7)

31 (27.4)

0.000

0 (0.0)

71 (62.9)

0.221

LDL-c (mmol/L)

2.9 ± 1.5

2.5 ± 0.9

0.687

3.6 ± 1.9

2.6 ± 0.9

0.087

TG (mmol/L)

1.3 ± 0.4

1.6 ± 1.0

0.397

1.8 ± 0.8

1.6 ± 0.9

0.576

Hb (g/dL)

104.8 ± 15.7

111.4 ± 14.6

0.072

134.4 ± 10.8

145.8 ± 13.8

0.011

LVEF (%)

56.5 ± 6.8

60.2 ± 5.8

0.013

59.3 ± 9.8

59.9 ± 6.9

0.777

CKD (%)

8 (11.9)

23 (34.3)

0.001

0 (0.0)

36 (53.8)

0.607

ACS (%)

11 (3.7)

85 (28.8)

0.519

4 (1.4)

195 (66.1)

0.352

Multiple stenting, n (%)

9 (5.8)

42 (26.9)

0.035

5 (3.2)

100 (64.1)

0.142

Stent length (mm)

28.8 ± 6.5

29.7 ± 5.1

0.463

28.8 ± 5.6

29.5 ± 5.6

0.695

Stent diameter (mm)

2.9 ± 0.5

3.2 ± 0.5

0.024

3.0 ± 0.4

3.2 ± 0.5

0.262

Multivessel coronary disease (%)

4 (3.9)

23 (22.5)

0.484

2 (2.0)

73 (51.6)

1.000

LMCA, n (%)

1 (8.3)

2 (16.7)

0.275

1 (8.3)

8 (66.7)

0.226

LAD, n (%)

4 (4.9)

13 (15.9)

0.075

3 (3.7)

62 (75.6)

0.396

LCX, n (%)

14 (5.6)

72 (29.0)

0.008

4 (1.6)

158 (63.8)

1.000

RCA, n(%)

4 (1.9)

68 (32.5)

0.129

3 (1.4)

134 (64.2)

0.748

Bifurcation lesion, n (%)

10 (7.2)

30 (21.7)

0.000

3 (2.2)

95 (68.9)

1.000

Calcification, n (%)

2 (7.4)

9 (33.3)

0.307

2 (7.4)

14 (51.9)

0.068

Statins, n (%)

18 (3.5)

152 (29.9)

0.332

8 (1.6)

331 (65.0)

0.053

Aspirin, n (%)

18 (3.4)

154 (29.1)

0.403

10 (1.9)

348 (65.6)

0.811

Clopidogrel, n (%)

9 (3.4)

83 (31.0)

0.880

6 (2.2)

170 (63.4)

0.476

Ticagrelor, n (%)

6 (2.5)

67 (28.3)

0.485

4 (1.7)

160 (67.5)

0.760

  1. ISR In-stent restenosis; BMI body mass index; CKD Chronic kidney disease; Hb hemoglobin; LVEF Left ventricular ejection fraction; ACS Acute coronary syndrome; LDL-c Low-density lipoprotein cholesterol; TG triglycerides; LMCA Left main conronary artery; LAD Left anterior descending artery; LCX Left circumflex artey; RCA Right coronary artery