Table 1.
Subject characteristics in study 1
| Age category | ||||
|---|---|---|---|---|
| Variables | < 35 years | 35–49 years | 50–64 years | ≥ 65 years |
| N, men/women | 20/16 | 16/17 | 35/42 | 21/23 |
| Age, years | 27.0 ± 4.6 | 43.3 ± 4.8* | 59.9 ± 3.1*† | 69.2 ± 3.2*†‡ |
| Height, cm | 166.2 ± 8.3 | 165.2 ± 8.1 | 160.4 ± 8.1* | 158.0 ± 8.6*† |
| Body weight, kg | 61.7 ± 11.9 | 63.2 ± 11.5 | 59.1 ± 9.3 | 56.8 ± 8.7 |
| BMI, kg/m2 | 22.2 ± 3.1 | 23.0 ± 3.0 | 22.9 ± 2.6 | 22.7 ± 2.2 |
| Heart rate, bpm | 58.1 ± 8.8 | 60.1 ± 8.4 | 60.4 ± 7.5 | 60.1 ± 7.2 |
| Brachial SBP, mm Hg | 112 ± 15 | 119 ± 14 | 126 ± 16* | 130 ± 16*† |
| Brachial DBP, mm Hg | 65 ± 10 | 74 ± 10* | 78 ± 10* | 79 ± 10* |
| Brachial PP, mm Hg | 47 ± 7 | 45 ± 7 | 48 ± 10 | 50 ± 10 |
| Aortic SBP, mm Hg | 99 ± 14 | 110 ± 15* | 120 ± 16*† | 123 ± 15*† |
| Aortic MBP, mm Hg | 65 ± 10 | 74 ± 10* | 78 ± 10* | 79 ± 10* |
| Aortic DBP, mm Hg | 65 ± 10 | 74 ± 10* | 78 ± 10* | 79 ± 10* |
| Aortic PP, mm Hg | 33 ± 7 | 35 ± 8 | 41 ± 10*† | 43 ± 9*† |
| Aortic AP, mm Hg | 6.2 ± 3.7 | 8.8 ± 4.3 | 14.9 ± 6.0*† | 16.3 ± 6.3*† |
| Aortic AIx, % | 18.8 ± 10.4 | 24.3 ± 9.3 | 35.7 ± 8.9*† | 37.0 ± 8.8*† |
Abbreviations: AIx, augmentation index; AP, augmentation pressure; BMI, body mass index; DBP, diastolic blood pressure; MBP, mean blood pressure; PP, pulse pressure; SBP, systolic blood pressure.
Data are mean ± SD. “*”, “†”, and “‡” indicate significant differences from <35 years, 35–49 years, and 50–64 years, respectively (by Scheffe post hoc test).