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Table 2: Characteristics of plaques with and without an ulcer at baseline
Ulcer Absent (n = 131)Median (IQR) or No. (%) Ulcer Present (n = 49) Median (IQR) or No. (%) Binary Logistic Regression OR (95% CI) ROC Analysis AUC (95% CI)
NASCET (%) 8 (0–29) 21 (0–37) 1.01 (1.00–1.03) 0.61 (0.52–0.71)
ECST (%) 55 (45–65) 59 (48–70) 1.02 (1.00–1.05) 
Minimal diameter (mm) 4 (3.3–4.9) 3.4 (2.8–4.7) 0.06 (0.00–1.00) 0.40 (0.30–0.50)
Total vessel volume (cm³) 1.41 (1.16–1.64) 1.60 (1.29–2.12) 4.9 (2.1–11.4) 0.64 (0.54–0.74)
Lumen volume (cm³) 0.56 (0.45–0.72) 0.58 (0.46–0.80) 2.8 (0.6–12.1) 
Wall volume (cm³) 0.85 (0.70–0.98) 1.02 (0.77–1.28) 12.1 (3.5–42.0) 0.67 (0.58–0.77)
% Wall volume 59 (53–66) 61 (57–68) 1.01 (0.99–1.04) 
LRNC presence 78 (60%) 38 (78%) 2.4 (1.1–5.0) 0.59 (0.50–0.68)
% LRNC volume 1 (0–10) 15 (1–31) 1.7 (1.3–2.2) 0.70 (0.60–0.79)
IPH presence 42 (32%) 27 (55%) 2.6 (1.3–5.1) 0.61 (0.52–0.71)
% IPH volume 0 (0–3) 5 (0–23) 1.7 (1.3–2.2) 0.67 (0.56–0.76)
Calcifications presence MR imaging 118 (90%) 44 (90%) 0.97 (0.33–2.88) 
% Calcifications volume MR imaging 5 (2–8) 3 (1–7) 0.73 (0.50–1.07) 
Calcification presence MDCTA 117 (89%) 45 (92%) 0.74 (0.23–2.38) 
Calcification absolute volume MDCTA (mm³) 31.4 (4.3–80.4) 15.8 (2.8–51.9) 0.99 (0.999–1.002) 
Thin-or-ruptured FC 45 (34%)^{^a,^b} 32 (65%) 3.4 (1.7–6.7) 0.65 (0.56–0.74)
Note:—FC indicates fibrous cap.
↵a Four were missing.
↵b Four had bad quality.