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Table 1 Prevalence and risk ratio of receiving allogeneic blood transfusion (ABT) according to characteristics of older hip fracture patients (n = 491)

From: A restrictive policy for red blood cell transfusion in older hip fracture patients: experiences from a patient register

  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)