Kaplan-Meier curves show the incidence of cardiac endpoints for tertiles
of regional heterogeneity (A) and global scale (B) [11C]HED quantification
methods. Note that the coloring of the tertiles for the global scale parameters
(B) is reversed to correspond with the theoretical risk. For the regional defect
parameters, the low (green) and high (red) tertiles for Regional Normalized
Uptake Defect Score (low: <22.87%, high ≥32.6%) and DV Defect
Score (low: <35%, high ≥43%) are shown. Similarly, for the global
scale parameters, the low (red) and high (green) tertiles for DV (Low:
<8.7mL/g, High: ≥12.2 mL/g) and RI (Low: <3.84 %/min, High:
≥4.85%/min). Corresponding P values for the univariate analysis using
continuous variables are in Table 3. SCA,
sudden cardiac arrest; C/NS, non-sudden cardiac death.