Table 2. Clinical measures stratified by BP devices and invasive SBP amplification quartiles.
| Device 1 (n = 171) | Device 2 (n = 52) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Variables | Q1 | Q2 | Q3 | Q4 | P trend | Q1 | Q2 | Q3 | Q4 | P trend |
| Noninvasive measures | ||||||||||
| Esta aortic SBP | 119 ± 12 | 122 ± 15 | 117 ± 16 | 116 ± 19 | 0.317 | 131 ± 20 | 128 ± 15 | 117 ± 19 | 132 ± 15 | 0.106 |
| Cuff brachial SBP | 130 ± 13 | 134 ± 17 | 128 ± 18 | 131 ± 21 | 0.471 | 134 ± 19 | 134 ± 13 | 123 ± 19 | 140 ± 15 | 0.094 |
| Esta SBP amplification | 11 ± 3 | 12 ± 4 | 11 ± 4 | 14 ± 3 | <0.001 | 3 ± 2 | 6 ± 4 | 7 ± 4 | 8 ± 4 | 0.027 |
| Cuff heart rate (bpm) | 63 ± 11 | 64 ± 12 | 69 ± 13 | 69 ± 13 | 0.032 | 62 ± 9 | 65 ± 14 | 60 ± 11 | 72 ± 11 | 0.042 |
| Invasive measures | ||||||||||
| Aortic SBP | 133 ± 18 | 136 ± 18 | 126 ± 25 | 124 ± 21 | 0.021 | 136 ± 24 | 132 ± 15 | 115 ± 19 | 131 ± 18 | 0.033 |
| Brachial SBP | 132 ± 18 | 141 ± 18 | 135 ± 25 | 144 ± 22 | 0.047 | 136 ± 23 | 137 ± 15 | 124 ± 18 | 148 ± 19 | 0.027 |
| SBP amplification | -1 ± 2 | 5 ± 1 | 10 ± 2 | 20 ± 5 | <0.001 | -1 ± 1 | 5 ± 2 | 9 ± 2 | 17 ± 3 | <0.001 |
| Aortic heart rate (bpm) | 62 ± 11 | 63 ± 12 | 67 ± 13 | 66 ± 11 | 0.138 | 63 ± 9 | 65 ± 9 | 62 ± 9 | 76 ± 11 | 0.003 |
| Aortic AIx (%) | 32.8 ± 12.1 | 26.0 ± 18.1 | 25.0 ± 21.9 | 9.0 ± 19.1 | <0.001 | 37.5 ± 12.2 | 20.4 ± 21.3 | 22.2 ± 16.4 | 20.6 ± 16.0 | 0.034 |
| Brachial Aix (%) | 9.0 ± 9.6 | 5.5 ± 20.3 | -2.7 ± 19.6 | -17.5 ± 20.3 | <0.001 | 10.2 ± 10.9 | 2.9 ± 12.6 | -7.4 ± 19.8 | -1.8 ± 16.4 | 0.035 |
Sphygmocor Xcel and Uscom BP+ were defined as device 1 and device 2, respectively-Data are mean ± standard deviation.
a
Est: estimated.AII blood pressure variables are reported in mmHg Aix. augmentation index; PP, pulse pressure; SBP amplification = brachial SBP - aortic SBP: SBP. systolic blood pressure.