Table 2 Mean and regression statistics for aPWV measures plotted against SphygmoCor aPWV
From: Validity and repeatability of the Vicorder apparatus: a comparison with the SphygmoCor device
Linear regression | ||||||
|---|---|---|---|---|---|---|
Device and distance method | aPWV (m s−1) | Difference (m s−1) | Significance (P) | Slope | r | P |
SphygmoCor (transit time=60±16 ms)a | ||||||
Notch-femoral – notch-carotid | 8.6±2.9 | 0 | 1 | 1 | 0 | <0.001 |
Vicorder (transit time=83±18 ms) | ||||||
Notch-femoral (manufacturer) | 8.3±2.2 | −0.3±1.5 | 0.14 | 0.64 | 0.85 | <0.001 |
Notch-femoral – notch-carotid | 7.0±1.9 | 1.6±1.6 | <0.001 | 0.57 | 0.86 | <0.001 |
+ Cuff pulse distance | 7.9±2.1 | 0.7±1.5 | <0.001 | 0.63 | 0.86 | <0.001 |
Vicorder, femoral segment removed (transit time=65±18 ms) | ||||||
–Femoral segment | 7.6±2.8 | 1.0±1.6 | <0.001 | 0.83 | 0.84 | <0.001 |
