Table 4. Correlations between magnitude and timings of various indices of wave reflection and height.
Correlation | r | p |
AIx vs. height | −0.43 | 0.001 |
log WRI vs. height | 0.20 | 0.1 |
Pb/Pf vs. height | 0.17 | 0.2 |
Ts vs. height | 0.52 | <0.001 |
Time of reflected wave vs. height | 0.26 | 0.06 |
Time of Pb vs. height | −0.15 | 0.3 |
AIx, augmentation index; Pb backward pressure; Pb/Pf, the ratio of forward to backward pressure; Ts, the time of the shoulder of the waveform; WRI, wave reflection index. Data are Pearson’s correlation coefficients. Data are Pearson’s correlation coefficients.