Table 1 Comparison of baseline characteristics between the EU and HT groups

Demographics

 Age (y/o)

56.15 ± 10.40

55.41 ± 9.09

0.58

 Gender (male, %)

78 (63.9 %)

73 (77.7 %)

0.03*

 Hypertension (%)

36 (29.5 %)

37 (39.4 %)

0.13

 Diabetes mellitus (%)

20 (16.4 %)

16 (17.0 %)

0.90

 Smoking (%)

62 (50.8 %)

59 (62.8 %)

0.08

 RT dose (centi-grays)

7021.55 ± 401.67

6869.69 ± 425.32

0.02*

 RT interval (years)

9.18 ± 4.54

8.65 ± 4.48

0.39

 Baseline total plaque scores

3.30 ± 2.91

3.43 ± 3.43

0.78

Laboratory data

 HbA1C (%)

5.90 ± 0.63

5.83 ± 0.56

0.48

 Cr (mg/dL)

0.88 ± 0.27

0.89 ± 0.33

0.80

 LDL (mg/dL)

123.11 ± 41.32

119.78 ± 38.93

0.55

 Triglyceride (mg/dL)

127.70 ± 88.50

132.64 ± 80.03

0.68

 TSH

4.41 ± 3.94

2.33 ± 1.26

< 0.001*

 Free-T4

1.06 ± 0.22

1.10 ± 0.16

0.15

 High-sensitivity CRP

3.30 ± 6.06

3.62 ± 6.45

0.78

Medications

 Anti-platelets (%)

85 (69.7 %)

55 (58.5 %)

0.09

 Statins (%)

19 (15.6 %)

10 (10.6 %)

0.29

Clinical follow-up weeks

190.25 ± 29.00

192.26 ± 33.71

0.64

CDU follow-up weeks

152.39.25 ± 46.38

152.76 ± 42.84

0.95