Table 1 Comparison of general characteristics between the modeling group and validation group.

VP

 Non-VP

65 (33.2%)

48 (35.0%)

17 (28.8%)

0.41

 VP

131 (66.8%)

89 (65.0%)

42 (71.2%)

Gender

 Female

38 (19.4%)

25 (18.2%)

13 (22.0%)

0.56

 Male

158 (80.6%)

112 (81.8%)

46 (78.0%)

Thickness

 0

5 (2.6%)

5 (3.6%)

0 (0.0%)

0.26

 1

56 (28.6%)

42 (30.7%)

14 (23.7%)

 2

77 (39.3%)

49 (35.8%)

28 (47.5%)

 3

58 (29.6%)

41 (29.9%)

17 (28.8%)

Morphology

 0

124 (63.3%)

90 (65.7%)

34 (57.6%)

0.33

 1

72 (36.7%)

47 (34.3%)

25 (42.4%)

Echo

 0

30 (15.3%)

22 (16.1%)

8 (13.6%)

0.053

 1

41 (20.9%)

28 (20.4%)

13 (22.0%)

 2

84 (42.9%)

52 (38.0%)

32 (54.2%)

 3

41 (20.9%)

35 (25.5%)

6 (10.2%)

Stenosis

 0

54 (27.6%)

39 (28.5%)

15 (25.4%)

0.2

 1

95 (48.5%)

61 (44.5%)

34 (57.6%)

 2

47 (24.0%)

37 (27.0%)

10 (16.9%)

Calcification

 0

88 (44.9%)

60 (43.8%)

28 (47.5%)

0.25

 1

41 (20.9%)

33 (24.1%)

8 (13.6%)

 2

67 (34.2%)

44 (32.1%)

23 (39.0%)

Hypoechoicarea

 0

137 (69.9%)

95 (69.3%)

42 (71.2%)

0.87

 1

59 (30.1%)

42 (30.7%)

17 (28.8%)

CEUS

 0

60 (30.6%)

42 (30.7%)

18 (30.5%)

0.41

 1

62 (31.6%)

47 (34.3%)

15 (25.4%)

 2

74 (37.8%)

48 (35.0%)

26 (44.1%)

Hyperlipidemia

 0

88 (44.9%)

62 (45.3%)

26 (44.1%)

0.99

 1

108 (55.1%)

75 (54.7%)

33 (55.9%)

DM

 0

95 (48.5%)

68 (49.6%)

27 (45.8%)

0.64

 1

101 (51.5%)

69 (50.4%)

32 (54.2%)

HT

 0

95 (48.5%)

68 (49.6%)

27 (45.8%)

0.64

 1

101 (51.5%)

69 (50.4%)

32 (54.2%)

Smoking

 0

95 (48.5%)

68 (49.6%)

27 (45.8%)

0.64

 1

101 (51.5%)

69 (50.4%)

32 (54.2%)

Statins

 0

121 (61.7%)

84 (61.3%)

37 (62.7%)

0.87

 1

75 (38.3%)

53 (38.7%)

22 (37.3%)

Age

64.7 (± 11.6)

64.2 (± 11.8)

65.7 (± 11.1)

0.43

BMI (kg/m²)

25.0 (± 3.3)

25.1 (± 3.3)

24.8 (± 3.2)

0.64

CRP ( mg/L)

7.3 (± 5.5)

6.9 (± 5.9)

8.2 (± 4.3)

0.13