Fig. 4: Aortic impedance, variables reflecting large arterial stiffness, and extracellular volume.

Evaluated aortic characteristic impedance A, pulse wave velocity B, stroke index to central pulse pressure ratio C and extracellular water balance D in subjects with predominantly systolic or diastolic hypertension and normotensive controls; adjusted for sex, age, BMI, and cystatin C; mean and standard error of the mean; statistics with generalized estimating equations.