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Performance characteristics of algorithm B4. As an example, for the figures in bold the underlying 2×2 table is shown as Table VI.
| Transfusion trigger (haematocrit) | 0.24 L/L | 0.27 L/L | ||
|---|---|---|---|---|
|
| ||||
| Unnecessary PABD (= wastage rate)/unnecessary cross-match [%] | Allogeneic/uncross-matched transfusion [%] | Unnecessary PABD (= wastage rate)/unnecessary cross-match [%] | Allogeneic/uncross-matched transfusion [%] | |
| Algorithm variation | ||||
| Original | 0 | 95.7 | 46.2 | 78.8 |
| “Optimised” | 50 | 91.6 | 60.0 | 69.7 |
