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Hb values: preoperative, first and third postoperative days (Hb g/dL ± SD)
| Group A | Group B | P | |
|---|---|---|---|
| Preoperative | 13.3 ± 1.3 (13.1–13.5) | 13.7 ± 1.4 (13.5–13.9) | 0.001 |
| Day 1 | 9.7 ± 1.3 (9.5–9.9) | 10.6 ± 1.3 (10.4–10.8) | <0.0005 |
| Day3 | 9.7 ± 1.0 (9.6–9.8) | 10.1 ± 1.3 (9.9–10.3) | 0.001 |
| Δ (Hb PRE − Hb1) | 3.5 ± 1.0 (3.4–3.6) | 3.1 ± 0.9 (3.0–3.2) | <0.0005 |
Statistical analysis: independent samples t test
