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Table 3 The results of Bland-Altman analysis between actual and test systemic vascular resistances

From: Is measurement of central venous pressure required to estimate systemic vascular resistance? A retrospective cohort study

 

Neurosurgery

Cardiac surgery

Mean bias

(95% CI)

Lower LoA

(95% CI)

Upper LoA

(95% CI)

Mean bias

(95% CI)

Lower LoA

(95% CI)

Upper LoA

(95% CI)

SVRf10 (dynes/sec/cm− 5)

16.9 (−28.6 to 62.4)

−208.5 (−306.3 to −148.1)

242.2 (181.8 to 340.0)

−52.4 (−97.8 to −7.1)

−268.1 (−367.5 to −207.7)

163.2 (102.9 to 262.6)

SVRr (dynes/sec/cm− 5)

16.7 (− 28.5 to 61.9)

− 249.0 (− 337.2 to − 193.4)

282.4 (226.8 to 370.6)

−52.9 (− 97.7 to −8.1)

− 304.1 (− 393.6 to − 248.7)

198.2 (142.9 to 287.8)

  1. SVRf10 systemic vascular resistance calculated using fixed central venous pressures of 10 mmHg, SVRr SVR calculated using random central venous pressure ranging from 5 to 15 mmHg, LoA limit of agreement, CI confidence interval