Table 1 Characteristics of cases of revision total hip replacement

Number of cases (n)

50

96

Age (years)

67.3 ± 12.2

70.2 ± 11.3

Preoperative hemoglobin concentration (g/dl)

14.2 ± 1.36

12.7 ± 1.25

Blood loss (g/dl)

4.6 ± 1.75

3.5 ± 1.64

Length of hospitalization (days)

12.8 ± 9.3

14.9 ± 17.5

Number of units transfused (n)

71

188

Number of patients transfused (n)

22 (44%)

51 (53%)