Skip to main content
. Author manuscript; available in PMC: 2018 Apr 5.
Published in final edited form as: J Clin Ultrasound. 2015 Dec 22;44(3):182–187. doi: 10.1002/jcu.22324

Table 3.

Vascular measures by group

Variable Group
Children Adults P-value
Baseline Diameter (mm) 3.07 ± 0.04 3.79 ± 0.04 < 0.0001
Peak FMD (% from baseline) 7.25 ± 0.28 6.47 ± 0.18 0.022
Peak Shear rate (sec−1) 314 ± 8.38 278 ± 4.92 0.0002
ShearAUC (sec−1) 13231 ± 531 9907 ± 237 < 0.0001
ShearAUC 0-peak flow (sec−1) 3231 ± 135 2569 ± 67 < 0.0001
FMDAUC (% sec−1) 715 ± 35.2 602 ± 20.5 0.008
FMD Time to Peak (sec) 57.2 (53.3, 61.4) 52.8 (50.5, 55.1) 0.027
Time to Peak Shear (sec) 11.8 (11.1, 12.6) 10.6 (10.2, 11.0) 0.004
FMDTTP-ShearTTP (sec) 42.9 (38.9, 47.4) 40.2 (38.0, 42.6) 0.27

Variables represented: flow mediated dilation (FMD), shear area under the curve (ShearAUC), ShearAUC from cuff deflation to peak flow (0-peakflow), FMD under the curve (FMDAUC), FMD time to peak (FMDTTP), Shear Time to peak (ShearTTP). Baseline Diameter, Peak FMD, ShearAUC, and FMDAUC are mean ± SEM, FMD time to peak and Time to Peak shear values are back-transformed and represent geometric mean (95% CI), P-value < 0.05 demonstrates significant differences between means (two sided).