Table 4 Comparison of the outcomes of patients with blood type O versus those of other blood types.
Type O, n = 288 | Non-O type, n = 632 | p-value | |
|---|---|---|---|
Primary outcome | |||
In-hospital mortality, n (%) | 64 (22.2) | 80 (12.7) | < 0.001 |
Secondary outcomes | |||
Death due to exsanguination, n (%) | 50 (17.3) | 63 (10.0) | 0.002 |
Death due to other reasons, n (%) | 14 (4.9) | 17 (2.7) | 0.021 |
Ventilation-free days, median [IQR] | 17 [4–27] | 27 [19–28] | < 0.001 |
Median RBC volume administered within 24 h, units [IQR] | 6 [0–18] | 0 [0–10] | < 0.001 |