| After adjusting for perioperative transfusion† | ||
| Perioperative transfusion | ||
| 0 units | REF | |
| 1 unit | 4.02 (3.01 to 5.03) | <0.001 |
| ≥2 units | 8.35 (6.97 to 9.73) | <0.001 |
| Per unit increase in Hb by 1 g | −0.07 (-0.20 to 0.06) | 0.28 |
*R2=0.114, adjusted R2=0.103.
†R2 = 0.182, adjusted R2=0.171.
Hb, haemoglobin; LOS, length of stay; REF, reference.