Table 2 Measurement of agreement between LVOT VTI and carotid VTI.

From: Agreement between carotid and LVOT non-invasive cardiac output measurements in ED septic shock patients: a prospective observational study

 

Estimate

95% CI

p-value

Bland–Altman agreement

 Bias

− 0.47

− 2.11, 1.17

0.583

 Lower limit of agreement

− 10.51

− 13.35, − 7.67

 Upper limit of agreement

9.58

6.74, 12.42

 Lin’s concordance correlation coefficient

0.527

0.300, 0.753

< 0.001

Intraclass correlation coefficient—absolute agreement

0.695

0.423, 0.839

< 0.001

Intraclass correlation coefficient—consistency of agreement

0.692

0.417, 0.837

< 0.001

  1. LVOT left ventricular outflow tract, VTI velocity time integral.
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