Figure 1. Percent increase in mean IMT over 3 years according to quartiles of baseline Trait Anger scores measured 7.4 years before the first scan. (F (7,195) = 2.68, p < .05 in ANCOVA, controlling for mean IMT measured at first carotid scans, age at the time of Trait Anger measure and length of follow-up; p < .05 for linear trend.)