Evaluation of 24-Hour Arterial Stiffness Indices and Central Hemodynamics in Healthy Normotensive Subjects versus Treated or Untreated Hypertensive Patients: A Feasibility Study
Table 4
Correlation coefficients between reflected wave transit time (RWTT), pulse wave velocity (PWV), augmentation index (AI), ambulatory arterial stiffness index (AASI), and ambulatory blood pressure (BP) evaluated in the study.
RWTT (ms)
Aortic PWV (m/s)
Peripheral AI (%)
Aortic AI (%)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Aortic SBP (mmHg)
−0.18*
−0.06
0.37**
0.02
0.34**
0.45**
0.37**
0.50**
Aortic DBP (mmHg)
−0.18*
−0.11**
0.31**
0.11**
0.20*
−0.07
0.26**
−0.07
Peripheral RWTT (ms)
—
—
−0.55**
−0.63**
−0.44**
−0.39**
−0.51**
−0.29**
Aortic PWV (ms/s)
−0.55**
−0.63**
—
—
0.25**
0.14**
0.29**
0.05
Peripheral AI (%)
−0.44**
−0.39**
0.25**
0.14**
—
—
0.92**
0.89**
Aortic AI (%)
−0.51**
−0.29**
0.29**
0.05
0.92**
0.89**
—
—
AASI
0.08
−0.06
−0.11
0.06
−0.05
0.39**
−0.03
0.41**
SBP: systolic blood pressure; DBP: diastolic blood pressure. Data are separately shown for healthy subjects and hypertensive patients. The asterisks refer to the statistical significance of the correlation coefficient (; ).
