Table 3. Arterial proprieties according to blood pressure level.
| Variable – mean ± SD | Normotension (69) | HTN stage 1 (83) | HTN stage 2 (59) | p |
|---|---|---|---|---|
| Diameter, mm | 6.5 ± 0.6 | 7.0 ± 0.8 | 7.2 ± 0.7 | < 0.001a |
| Distension, % | 4.8 ± 2.1 | 4.7 ± 2.2 | 5.0 ± 1.7 | 0.572 |
| IMT, mm | 0.7 ± 0.1 | 0.8 ± 0.1 | 0.8 ± 0.1 | 0.003a |
| PWV, m/s | 7.5 ± 1.4 | 7.9 ± 1.2 | 8.0 ± 1.3 | 0.100 |
| AIx | 22.3 ± 12.9 | 24.7 ± 12.2 | 30.4 ± 11.9 | 0.001b |
| Alx75 | 21.1 ± 12.0 | 24.2 ± 9.9 | 25.8 ± 9.8 | 0.038c |
| cSBP, mmHg | 111.5 ± 9.5 | 121.1 ± 14.6 | 141.1 ± 32.6 | < 0.001d |
| cDBP, mmHg | 76.7 ± 7.8 | 83.0 ± 10.5 | 92.7 ± 17.1 | < 0.001d |
P value refers to comparisons of the means among the groups by the 1-way ANOVA step-wise test with Bonferroni post-hoc analysis. Alx, augmentation index; Alx75, augmentation index corrected to 75bpm; IMT, intima media thickness; cDBP, central blood pressure; cSBP, central systolic blood pressure; PWV, pulse wave velocity; HTN, hypertension; SD, standard deviation.
a
Normotension vs. HTN stage 2;
b
Normotension vs. HTN stage 1 and HTN stage 2;
c
HTN stage 2 vs. normotension and HTN stage 1;
d
All groups different.