Figure 4

Scatter plots of tonometric minus oscillometric (y axis) vs. age (x axis) estimates of (a) augmentation index and (b) pulse wave velocity. Plots include 51 women (circles) and 32 men (squares). The regression line with 95% confidence interval and the line of identity are shown. r indicates the correlation coefficient (±SE). P-values are for the difference between β and the line of identity (β=1).