Odds ratio (OR) and 95% confidence interval (CI) of recurrent group versus
non-recurrent group on the basis of univariable logistic regression for each
feature. A 10% increase in the plaque-wall contrast ratio (CR) led to an OR
of 3.22 for stroke recurrence (95% CI 1.55–9.98,
P = 0.003). Although statistical significance was not
achieved, 10% increases in peak normalized wall index (pNWI) and plaque
enhancement ratio (ER) led to an OR of 5.38 (95% CI 1.19–38.92,
P = 0.053) and 1.59 (95% CI 1.05–2.65,
P = 0.053), respectively, for stroke recurrence.