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Table 3 Mean visit values and mean differences between visits (baseline and follow-up) as measured by the same operators in the healthy subjects and ESRD groups

From: Reproducibility of carotid-femoral pulse wave velocity in end-stage renal disease patients: methodological considerations

Parameter Group Mean visit values Mean difference p value
± SD (95 % CI)
Carotid-femoral PWV
cf-PWV (m/s) HS 6.4 ± 1.3 −0.4 (−1.0 to 0.1) 0.130
ESRD 8.7 ± 2.8 +0.1 (−0.75 to 1.0) 0.780
Subtracted cf-distance (mm) HS 465 ± 31 +1.0 (−7.3 to 9.2) 0.820
ESRD 470 ± 35 −6.9 (−18.8 to 5.0) 0.240
cf mean time (ms) HS 77 ± 13 +0.6 (−3.7 to 4.9) 0.780
ESRD 60 ± 21 +1.7 (−4.3 to 7.6) 0.571
SBP (mmHg) HS 117 ± 12 −2.3 (−5.3 to 0.7) 0.130
ESRD 137 ± 19 −6.9 (−14.2 to 0.5) 0.070
DBP (mmHg) HS 70 ± 9 −1.3 (−2.9 to 0.3) 0.100
  ESRD 67 ± 10 −2.6 (−5.3 to 0.2) 0.070
Radial artery PWA
AIx@HR75 (%) HS 15 ± 14 +2.6 (−0.1 to 5.2) 0.053
ESRD 23 ± 11 −7.7 (−3.8 to 2.2) 0.610
Central pulse pressure (mm Hg) HS 35 ± 5 −0.4 (−2.2 to 1.5) 0.680
ESRD 57 ± 20 −2.0 (−7.0 to 3.1) 0.430
  1. AIx@HR75 augmentation index corrected for heart rate at 75 beats per minute, cf carotid femoral, CI confidence interval, DBP diastolic blood pressure, ESRD end-stage renal disease, HS healthy subjects, PWA pulse wave analysis, PWV pulse wave velocity (m/s), SBP systolic blood pressure