Table 1 Baseline characteristics of patients undergoing stenting for asymptomatic carotid artery stenosis

Age, years

70.0 (64.0–74.0)

70.0 (63.5–74.0)

70.0 (63.5–74.0)

69.0 (64.0–72.0)

0.417

Sex, male

231 (83.7%)

78 (89.7%)

114 (82.0%)

39 (78.0%)

0.154

 Hypertension

184 (66.7%)

52 (59.8%)

96 (69.1%)

36 (72.0%)

0.239

 Diabetes mellitus

117 (42.4%)

33 (37.9%)

62 (44.6%)

25 (50.0%)

0.363

 Hyperlipidemia

93 (33.7%)

12 (13.8%)

63 (45.3%)

18 (36.0%)

< 0.001

 Ischemic heart disease

51 (18.5%)

11 (12.6%)

28 (20.1%)

12 (24.0%)

0.198

 Atrial fibrillation

13 (4.7%)

3 (3.4%)

6 (4.3%)

4 (8.0%)

0.458

 Smoking

117 (42.4%)

35 (40.2%)

63 (45.3%)

19 (38.0%)

0.591

 Total cholesterol

166.0 (140.0–194.0)

181.0 (151.0–199.0)

164.0 (135.5–192.0)

152.0 (135.0–178.0)

0.008

 Triglyceride

121.0 (88.0–165.5)

120.5 (87.2–159.3)

114.3 (83.9–155.5)

145.5 (113.5–177.5)

0.048

 High-density lipoprotein

41.0 (35.0–49.0)

42.0 (35.0–49.0)

41.0 (35.0–49.2)

40.0 (36.0–47.5)

0.954

 Low-density lipoprotein

91.0 (68.0–114.5)

98.0 (81.0–118.9)

88.5 (66.0–113.0)

71.0 (57.5–113.2)

0.048

Pre-stenting antiplatelet

276 (100%)

87 (100%)

139 (100%)

50 (100%)

1.000

Degree of stenosis

0.207

 60–69%

12 (4.4%)

4 (4.6%)

7 (5.0%)

1 (2.0%)

 70–89%

195 (70.6%)

55 (63.2%)

99 (71.2%)

41 (82.0%)

 90–99%

69 (25.0%)

28 (32.2%)

33 (23.7%)

8 (16.0%)

Residual stenosis

10.0 (0.0–29.2)

5.0 (0.0–20.0)

10.0 (0.0–30.0)

20.0 (7.0–30.0)

0.003

Pre-stenting dilatation

266 (96.4%)

81 (93.1%)

137 (98.6%)

48 (96.0%)

0.101

Post-stenting dilatation

106 (38.4%)

27 (31.0%)

58 (41.7%)

21 (42.0%)

0.232