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Logistic regression analysis for risk of transfusion of more than one unit of blood
| Variables | > 1 unit (n = 30) | ≤ 1 unit (n = 54) | Odds ratio (95% CI) | Adjusted odds ratio (95% CI) |
|---|---|---|---|---|
| Ankylosed hips (yes) | 18 (60.0%) | 35 (64.8%) | 0.81 (0.3–2.0) | 0.81 (0.3–2.2); p = 0.66 |
| Flexion deformity (≥ 30°) | 10 (33.3%) | 19 (35.2%) | 0.92 (0.4–2.4) | 1.07 (0.4–3.1); p = 0.86 |
| Starting PCV (≤ 36) | 23 (76.7%) | 27 (50.0%) | 3.28* (1.2–8.9) | 3.29 (1.2–8.9); p = 0.02 |
