Table 2.
Univariate regression analysis results for the correlation between age, baseline aPWV and baseline AIx75 with the change in central and peripheral pressures during the CPT
| Age (years) | Baseline aPWV (m/sec) | Baseline AIx75 (%) | |
|---|---|---|---|
| All subjects | |||
| Peripheral pulse pressure (mmHg) | r = 0.523 | r = 0.650 | r = 0.317 |
| r 2 = 0.274 | r 2 = 0.423 | r 2 = 0.101 | |
| P = 0.012a | P = 0.001a | P = 0.150 | |
| Central pulse pressure (mmHg) | r = 0.369 | r = 0.470 | r = 0.125 |
| r 2 = 0.093 | r 2 = 0.221 | r 2 = 0.016 | |
| P = 0.091 | P = 0.027a | P = 0.581 | |
| Lower arterial stiffness | |||
| Peripheral pulse pressure (mmHg) | r = 0.184 | r = 0.446 | r = −0.148 |
| r 2 = 0.034 | r 2 = 0.199 | r 2 = 0.022 | |
| P = 0.588 | P = 0.169 | P = 0.663 | |
| Central pulse pressure (mmHg) | r = 0.243 | r = 0.350 | r = −0.225 |
| r 2 = 0.059 | r 2 = 0.122 | r 2 = 0.050 | |
| P = 0.472 | P = 0.292 | P = 0.507 | |
| Higher arterial stiffness | |||
| Peripheral pulse pressure (mmHg) | r = 0.514 | r = 0.644 | r = 0.385 |
| r 2 = 0.264 | r 2 = 0.415 | r 2 = 0.148 | |
| P = 0.106 | P = 0.032a | P = 0.243 | |
| Central pulse pressure (mmHg) | r = 0.180 | r = 0.385 | r = 0.135 |
| r 2 = 0.032 | r 2 = 0.149 | r 2 = 0.018 | |
| P = 0.597 | P = 0.242 | P = 0.691 | |
AIx75, aortic augmentation index relative to 75 bpm. Results are representative of data from 22 subjects.
a
Relationship statistically significant (P ≤ 0.05).