Table 3 Bland–Altman analysis of the methods
From: Blood loss quantification during major abdominal surgery: prospective observational cohort study
Bland–Altman analysis of Spectrophotometry and | Difference (mL) | 95% Limits of agreements | p-value |
|---|---|---|---|
Estimated blood loss by surgeon (sEBL) | -69 | (-532, 395) | 0.12 |
Estimated blood loss by anesthesiologist (aEBL) | -207 | (-773, 359) | 0.20 |
Calculation method (vCBL) | -675 | (-1742, 391) | 0.022 |
Gravimetric method (vGBL) | -1056 | (-2095, -16) | 0.002 |