Table 2 Pairwise comparison of the methods of blood loss quantification
From: Blood loss quantification during major abdominal surgery: prospective observational cohort study
Pairwise comparison Spectrophotometric measurement (vMBL) with | Test | p- value |
|---|---|---|
Estimated blood loss by surgeon (sEBL) | Paired-Sample T-Test T-value 2.2708 | 0.027 |
Estimated blood loss by anestesiologist (aEBL) | Paired-Sample T-Test T-value 5.5879 | < 0.0001 |
Gravimetric blood loss (vGBL) | Wilcoxon Signed-Rank Test Z- value 6.7877 | < 0.0001 |
Calculation method (vCBL) | Wilcoxon Signed-Rank Test Z- value 6.5651 | < 0.0001 |