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Figure 2 Ratio of the prevalence of outliers for carotid intima-media thickness (IMT) and/or stiffness between metabolic syndrome patients (solid bars) and controls (open bars). Outliers for IMT or stiffness are defined as subjects having values for IMT or stiffness that exceed the 75th percentile levels in the study population. p < 0.001 across high quartile status by analysis of variance.