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Table 1 Baseline Characteristics of the Study Population

From: Cerebrovascular mental stress reactivity is impaired in hypertension

Variable Normotensive (N = 10) Normotensive (N = 20) Hypertensive (N = 28) P-value
Age (year) 23 ± 4 49 ± 11 51 ± 13 0.5126
Male (%) 6 (50) 9 (45) 22 (79) 0.0308
Height (cm) 171 ± 9 171 ± 6.6 173 ± 8.6 0.3256
Weight (kg) 71 ± 16 78.0 ± 17.2 86.1 ± 15.6 0.0947
BMI 25.5 ± 4.19 26.88 ± 5.18 28.27 ± 6.56 0.4356
CA IMT (cm) 0.038 ± 0.01 0.058 ± 0.024 0.070 ± 0.017 0.0448
CA Diameter (cm) 0.61 ± 0.06 0.63 ± 0.06 0.69 ± 0.06 0.0015
Systolic BP(mm Hg) 109 ± 8 118.2 ± 12.5 140 ± 22.2 <.0001
Diastolic BP(mm Hg) 67 ± 7 72.6 ± 9.7 82.2 ± 16.2 0.0137
Mean BP (mm Hg) 81 ± 7 87.6 ± 9.1 100.8 ± 16.5 0.0010
Heart Rate (bpm) 71 ± 12 69.1 ± 12.1 66.4 ± 12.6 0.4689
PSV (cm/s) 105 ± 23 72.2 ± 15.6 74.2 ± 17.9 0.6922
EDV (cm/s) 22 ± 4 19.2 ± 6.0 22.1 ± 5.7 0.0899
TAM (cm) 21 ± 6 18.5 ± 4.9 19.6 ± 5.1 0.4511
RI 0.87 ± 0.1 0.73 ± 0.08 0.81 ± 0.23 0.1341
PI 2.42 ± 0.6 1.73 ± 0.60 1.95 ± 0.96 0.3428
Flow (ml) 381 ± 117 351.4 ± 113.6 444.2 ± 142.9 0.0201
Distensibility dyne-1 cm2 10-6 0.84 ± 0.20 0.52 ± 0.26 0.39 ± 0.19 <0.0001
  1. BMI, body mass index; CA, carotid artery; IMT, intima media thickness; BP, blood pressure; PSV, peak systolic velocity; EDV, end diastolic velocity; TAM, time-averaged mean velocity; RI, resistive index; PI, pulsatility index.