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Patients receiving blood substitution (units of packed red cells).
| ANH 14 | Non-ANH 14 | P | |
| Zero | 7 | 8 | |
| 1 unit | 4 | 0 | |
| 2 Units | 1 | 4 | |
| 3 Units | 1 | 0 | |
| >3 Units | 1 | 2 | |
| Average transfused, mL | 386 | 343 | 0.85 |
ANH: Acute normovolaemic hemodilution; non-ANH: No acute normovolaemic hemodilution
