Transfusion characteristics
| Characteristic . | Fresher (N = 12 308) . | Older (N = 20 651) . | P value . |
|---|---|---|---|
| Days between randomization and first transfusion | 0.06 (0.00-0.32) | 0.11 (0.00-0.33) | <.001 |
| Number of RBC units transfused | 46 419 | 76 640 | |
| Number of RBC units transfused per patient | 2 (1-4) | 2 (1-4) | .230 |
| Range | 1-227 | 1-92 | |
| Patients who received >1 unit, n (%) | 9182 (74.6) | 15 455 (74.8) | .637 |
| Duration of storage of RBC units, d | 10 (7-15) | 23 (16-30) | <.001 |
| Duration of storage of RBC units per patient, d | 10 (7-14) | 24 (18-30) | <.001 |
| Freshest RBC unit transfused, d | 8 (6-12) | 20 (15-27) | <.001 |
| Oldest RBC unit transfused, d | 11 (8-17) | 27 (19-35) | <.001 |
| Characteristic . | Fresher (N = 12 308) . | Older (N = 20 651) . | P value . |
|---|---|---|---|
| Days between randomization and first transfusion | 0.06 (0.00-0.32) | 0.11 (0.00-0.33) | <.001 |
| Number of RBC units transfused | 46 419 | 76 640 | |
| Number of RBC units transfused per patient | 2 (1-4) | 2 (1-4) | .230 |
| Range | 1-227 | 1-92 | |
| Patients who received >1 unit, n (%) | 9182 (74.6) | 15 455 (74.8) | .637 |
| Duration of storage of RBC units, d | 10 (7-15) | 23 (16-30) | <.001 |
| Duration of storage of RBC units per patient, d | 10 (7-14) | 24 (18-30) | <.001 |
| Freshest RBC unit transfused, d | 8 (6-12) | 20 (15-27) | <.001 |
| Oldest RBC unit transfused, d | 11 (8-17) | 27 (19-35) | <.001 |
Data are median (quartile 25th–quartile 75th) or n/N (%).