Figure 3
The Bland and Altman plots for the differences (Δ) of tonometric minus oscillometric estimates of (a) central systolic, (b) diastolic and (c) pulse pressures, the (d) crude and (e) standardised augmentation indices and (f) aortic pulse wave velocity. Plots include 51 women (circles) and 32 men (squares) The horizontal axis is the mean of the tonometric (TM) and oscillometric (OM) estimates within the individual subjects. TM (average of two readings) and OM (average of daytime ambulatory readings) refer to the measurements obtained by the tonometric SphygmoCor technique at the radial artery or by the oscillometric Mobil-O-Graph monitor at the brachial artery, respectively. The SphygmoCor measurements were calibrated by the brachial blood pressure obtained by means of the OMRON 705IT. r and P-values indicate the correlation coefficient and its significance, respectively.
