Table 1. Participant characteristics and clinical measures stratified by blood pressure devices.
| Variables | Device 1 (n = 171) | Device 2 (n = 52) | P values |
|---|---|---|---|
| Participant characteristics | |||
| Male sex [n (%)] | 119 (70) | 43 (83) | 0.063 |
| CAD [n (%)] | 111 (65) | 42 (81) | 0.031 |
| Age (years) | 60 ± 10 | 62 ± 10 | 0.446 |
| Weight (kg) | 86.8 ± 18.8 | 92.8 ± 13.4 | 0.037 |
| Height (cm)a | 170.8 ± 9.4 | 173.9 ± 10.9 | 0.052 |
| BMI (kg/m2) | 29.7 ± 5.3 | 30.6 ± 3.7 | 0.270 |
| eGFR (ml/min per 1.73 m2) | 89.5 ± 25.9 | 83.9 ± 24.3 | 0.169 |
| Noninvasive measures (mmHg) | |||
| Estimated aortic SBP | 119 ± 16 | 127 ± 18 | 0.002 |
| Cuff brachial SBP | 131 ± 18 | 133 ± 17 | 0.489 |
| Estimated SBP amplification | 12 ±4 | 6 ± 4 | <0.001 |
| Cuff heart rate (bpm) | 66 ± 12 | 65 ± 12 | 0.508 |
| Invasive measures (mmHg) | |||
| Aortic SBP | 130 ± 21 | 128 ± 21 | 0.715 |
| Brachial SBP | 138 ± 21 | 136 ± 20 | 0.554 |
| SBP amplification | 8 ± 8 | 8 ± 7 | 0.542 |
| Aortic heart rate (bpm) | 64 ± 12 | 66 ± 11 | 0.307 |
| Aortic Alx (%) | 23.2 ± 20.0 | 25.2 ± 17.8 | 0.519 |
| Brachial Alx (%) | –14 ± 20.6 | 1.0 ± 16.2 | 0.437 |
Sphygmocor Xcel and Uscom BP+ were defined as device 1 and device 2. respectively.Data are mean ± standard deviation or n (%).SBP amplification = brachial SBP - aortic SBP; PP amplification = brachial PP - aortic PP.AIx. augmentation index; eGFR, estimated glomerular filtration rate: PP. pulse pressure; SBP. systolic blood pressure.
a
Height data were available in n = 164 (Xcel device) and n = 40 (BP+ device) due to missing.