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Table 3 Agreement between PWD-CO and PAC-CO

From: Basic critical care echocardiography training of intensivists allows reproducible and reliable measurements of cardiac output

  CO (mean, SD) Prec. Bias 95% LOA PE CE CV
PAC 6.26 (1.96) 6% 0.03 0.05
PAC (CO < 6.5 L/min) 5.18 (0.70) 6% 0.03 0.05
PWD 5.22 (1.17) 15% 0.08 0.13
PWD (CO < 6.5 L/min) 4.72 (0.59) 16% 0.08 0.14
PWD-CO vs. PAC-CO 1.03 − 1.50 to 3.56 17% 0.09
PWD-CO vs. PAC-COa 0.46 − 1.29 to 2.22 12% 0.06
  1. CO: cardiac output; Prec.: precision; LOA: limits of agreement; IC: interval confidence; PE: percentage of error; CV: coefficient of variation; CE: coefficient of error; PWD-CO: cardiac output measured by pulse wave Doppler; PAC-CO: cardiac output measured by pulmonary artery catheter
  2. aCohort of patients with CO < 6.5 L/min