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Table 2 Bland-Altman analysis showing bias, 95 % limits of agreement, confidence interval and percentage error before (T1) and after cardiopulmonary bypass (T2)

From: Accuracy of an autocalibrated pulse contour analysis in cardiac surgery patients: a bi-center clinical trial

 

T1

T2

ndata/npatient

n = 288/n = 65

n = 260/n = 65

 

CIPFX

CIPFX

Mean (L/min/m2)

3.03

3.58

Bias (L/min/m2)

0.65

0.49

SD of bias (L/min/m2)

0.81

0.80

Confidence Interval of LOA (L/min/m2)

0.52

0.49

95 % limits of agreement (L/min/m2)

−1.01 to +2.29

−1.15 to +2.13

Percentage error (%)

63

50

  1. CI PFX cardiac index by semi-invasive pulse contour analysis, CI of LOA confidence interval of the limits of agreement
  2. Values are given as mean ± SD