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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Comparison of oscillometric, non-invasive and invasive arterial pressure monitoring in patients undergoing laparoscopic bariatric surgery – a secondary analysis of a prospective observational study

Fig. 2

Pooled correlation and Bland-Altman analyses for all MAP data pairs measured by NIBP and Nexfin® versus IAP. Panels A and B: NIBP (A) or Nexfin® (B) (y-axis) derived values are plotted against IAP values (x-axis), with correlation coefficient (r) and P value displayed in the diagrams. Panels C and D: Bland-Altman plots, where differences of IAP and NIBP (C) or Nexfin® (D) (y-axis) are plotted against their common mean (x-axis). The bold dotted lines display the limits of agreement, where 95% (bias ±1.96 standard deviation of the difference) of all measurements are located. The middle line shows the mean difference (bias). Percentage error and bias are displayed in the diagrams. MAP: Mean arterial pressure, PE: Percentage error, IAP: Invasive arterial pressure, NIBP: Non-invasive oscillometric blood pressure, r: Correlation coefficient

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BMC Anesthesiology

ISSN: 1471-2253

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