Peripheral augmentation index, ambulatory arterial stiffness index, and pulse wave velocity values divided into 4 quartiles according to SOD serum levels. Multivariate analysis: AASI, PAIx, PWV, and IMT are dependent variables, and SOD is the independent variable. (b), (d), and (f) show values after adjusting for age the independent variable. AASI: ambulatory arterial stiffness index; PAIx: peripheral augmentation index; PWV: pulse wave velocity.
values: (a): 0.166; (b): 0.469; (c): 0.076; (d): 0.825; (e): 0.102; (f): 0.090.