Bleeding events according to timing of first dalteparine dose
| Bleeding events | Group; no. (%) | p value | ||
|---|---|---|---|---|
| Global cohort, n = 345 | First dalteparine dose ≤ 12 h post-op, n = 133 | First dalteparine dose ≥ 24 h post-op, n = 212 | ||
| ≥ 2 units transfused | 53 (15.3) | 18 (13.5) | 35 (16.5) | 0.46 |
| Decrease ≥ 2 g/dL hemoglobin (pre-op v. post-op day 3) | 330 (95.7) | 125 (94.0) | 205 (96.7) | 0.23 |