Fig. 1.
Bland-Altman plot comparing systolic (SBP; A and B), diastolic (DBP; C and D), and mean arterial pressures (MBP; E and F) in intra-arterial blood pressure (BPINTRA) to auscultatory (BPAUSC; A, C, E) and Penaz BPs (BPPENAZ; B, D, F). Bold horizontal line indicates mean difference between methods; dashed horizontal lines are the limits of agreement (i.e., ±2 SD of the mean difference). ○, BP during normothermia (n = 10); ●, BP during heat stress [before lower body negative pressure (LBNP); n = 10]; ▵, BP during moderate LBNP (n = 10); □, BP during severe LBNP (n = 6); ■, BP at presyncope (n = 6).