Evaluation of 24-Hour Arterial Stiffness Indices and Central Hemodynamics in Healthy Normotensive Subjects versus Treated or Untreated Hypertensive Patients: A Feasibility Study
Table 3
Correlation coefficients of 24-hour BP and arterial stiffness measures with age and peripheral (brachial) SBP and DBP.
Age (years)
Peripheral SBP (mmHg)
Peripheral DBP (mmHg)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Healthy subjects ( = 142)
Hypertensive patients ( = 661)
Peripheral SBP (mmHg)
0.02
0.22**
—
—
0.56**
0.21**
Peripheral DBP (mmHg)
0.27**
−0.13**
0.56**
0.21**
—
—
Aortic SBP (mmHg)
0.28*
0.35**
0.90**
0.96**
0.69**
0.27**
Aortic DBP (mmHg)
0.27**
−0.12**
0.55**
0.22*
0.99**
0.99**
RWTT (ms)
−0.25**
−0.35**
−0.08
−0.03
−0.11
−0.06
Normalized RWTT (ms)
−0.38**
−0.31**
0.10
−0.08*
0.14
0.03
Aortic PWV (m/s)
0.41**
0.26**
0.30**
0.02
0.31**
0.12**
Normalized aortic PWV (m/s)
0.44**
0.19**
0.04
0.08*
0.03
0.01
Peripheral AI (%)
0.56**
0.62**
−0.03
0.28**
0.16
−0.11**
Normalized peripheral AI (%)
0.39**
0.39**
−0.08
0.12**
0.08
−0.08
Aortic AI (%)
0.57**
0.60**
0.01
0.33**
0.22**
−0.11**
Normalized aortic AI (%)
0.41**
0.41**
−0.05
0.18**
0.13
−0.08**
AASI
−0.05
0.36**
0.28**
0.53**
0.03
−0.19**
SBP: systolic blood pressure; DBP: diastolic blood pressure; RWTT: reflected wave transit time; PWV: pulse wave velocity; AI: augmentation index; AASI: ambulatory arterial stiffness index. Data are separately shown for healthy subjects and hypertensive patients. The asterisks refer to the statistical significance of the correlation coefficient (; ).
