Table 1 Prevalence and risk ratio of receiving allogeneic blood transfusion (ABT) according to characteristics of older hip fracture patients (n = 491)
Received ABT (n = 106) | No ABT (n = 385) | Crude RR (95 % CI) of receiving ABT | p value | |
|---|---|---|---|---|
Sex, n (%) | ||||
Women | 85 (22.9) | 286 (77.1) | 1.00 (ref.) | 0.13 |
Men | 21 (17.5) | 99 (82.5) | 0.73 (0.48–1.12) | |
Age, n (%) | ||||
<80 years | 13 (11.0) | 105 (89.0) | 1.00 (ref.) | 0.001 |
≥80 years | 93 (24.9) | 280 (75.1) | 2.36 (1.37–4.05) | |
ASA score (n = 483), n (%) | ||||
Low (1–2) | 37 (18.1) | 167 (81.9) | 1.00 (ref.) | 0.095 |
High (3–4) | 69 (24.7) | 210 (75.3) | 1.43 (1.00–2.04) | |
Type of fracture, n (%) | ||||
Femur neck fracture | 33 (11.7) | 248 (88.3) | 1.00 (ref.) | <0.001 |
Per-/subtrochanteric fracture | 73 (34.8) | 137 (65.2) | 2.78 (1.96–3.94) | |
Hb on admission (n = 490), n (%) | ||||
≤110.0 g/l | 48 (57.8) | 35 (42.2) | 1.00 (ref.) | <0.001 |
>110.0 g/l | 58 (14.2) | 349 (85.7) | 0.24 (0.18–0.33) | |