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. Author manuscript; available in PMC: 2011 Feb 8.
Published in final edited form as: Hypertension. 2010 Jan 11;55(2):319–326. doi: 10.1161/HYPERTENSIONAHA.109.141275

Table 1.

Patient Characteristics and Arterial Measures According to Age Category

Patient Characteristics 20–29 Yr (n=21) 30–39 Yr (n=15) 40–49 Yr (n=31) 50–59 Yr (n=16) 60–69 Yr (n=14) ≥70 Yr (n=14) P
Gender, female/male 10/11 6/9 16/15 9/7 10/4 6/8 0.60
Height, cm 172±7 172±9 172±8 168±8 164±7 166±10 0.02
Weight, kg 73±16 75±15 82±19 76±13 73±16 76±17 0.36
BMI 25±5 25±5 28±7 27±4 27±5 27±4 0.29
Heart rate, bpm 64±9 68±9 67±12 61±8 64±10 60±13 0.17
Carotid IMT, mm 0.41±0.07 0.47±0.08 0.60±0.15 0.70±0.15 0.87±0.25 0.84±0.15 <0.0001
AIx, % –10±15 –4±15 16±18 31±9 26±9 32±13 <0.0001
Augmented pressure, mm Hg –3.73±6.1 –1.30±5.1 6.0±7.3 13.9±6.6 14.3±7.7 17.1±6.1 <0.0001
Brachial pressures, mm Hg
    SBP 109±9 113±12 122±16 134±20 143±21 135±13 <0.0001
    DBP 62±6 68±11 76±11 79±10 77±11 69±9 <0.0001
    PP 48±7 46±3 46±8 55±11 66±15 66±10 <0.0001
Central pressures, mm Hg
    SBP 94±10 100±14 113±16 126±20 134±24 129±12 <0.0001
    DBP 59±7 66±12 75±11 77±11 75±12 69±10 <0.0001
    PP 35±6 33±4 38±9 49±12 59±18 60±11 <0.0001
Carotid distensibility, kPa–1 · 10–3 12.6±3.9 11.6±3.6 8.7±2.2 6.8±2.4 5.6±2.9 5.3±1.6 <0.0001
Ascending aorta
    Diameter, mm 27.5±2.7 27.8±3.1 31.1±3.1 32.9±4.1 34.3±2.7 33.7±3.8 <0.0001
    Strain, % 33±10 27±10 15±8 11±4 9±4 8±4 <0.0001
    Distensibility, kPa–1 · 10–3 74±23 61±23 31±18 18±7 12±7 10±6 <0.0001
Descending aorta
    Diameter, mm 20.5±1.6 21.1±2.7 23.5±2.4 24.1±2.6 24.7±1.8 24.7±2.5 <0.0001
    Strain, % 33±8 31±12 19±9 18±9 13±5 14±7 <0.0001
    Distensibility, kPa–1 · 10–3 72±18 70±24 38±17 29±13 18±8 17±6 <0.0001
Aortic arch PWV, m/sec 3.5±0.5 3.9±1.1 5.6±1.4 7.2±2.3 9.7±2.9 11.1±4.6 <0.0001
cfPWV, m/sec 6.2±0.7 6.7±1.0 8.8±1.9 9.5±1.8 12.8±3.9 13.8±5.3 <0.0001