Figure 1

Comparison between intermittent oscillometric and continuous noninvasive arterial pressure measurements. Bland-Altman plots accounting for repeated measurements for the comparison of arterial pressure measurements using the vascular unloading technique (VUT) with arterial pressure measurements using oscillometry (OSCI) are presented. Data are separately shown for systolic arterial pressure (SAP-VUT vs. SAP-OSCI) (A), diastolic arterial pressure (DAP-VUT vs. DAP-OSCI) (B), and mean arterial pressure (MAP-VUT vs. MAP-OSCI) (C). The bias is illustrated by a continuous horizontal line. The dashed horizontal lines represent the 95% limits of agreement, i.e., bias ± 1.96 * standard deviation. Diagonal lines indicate the non-uniform relation between differences and mean values assessed by mixed model regression.