Table 1 Demographic and preoperative data in both groups
|  | Control group (n = 72) | Study group (n = 72) | p-value |
|---|---|---|---|
Age | 80.9 ± 6.2 | 80.1 ± 5.3 | 0.361 |
Gender (Male: Female) | 18: 54 | 18: 54 | >  0.99 |
Body mass index (kg/m2) | 21.8 ± 4.2 | 22.3 ± 3.5 | 0.414 |
Time to operation (days) | 2.8 ± 2.2 | 3.0 ± 3.9 | 0.656 |
ASA score | 0.166 | ||
 II | 1 | 0 |  |
 III | 69 | 65 |  |
 IV | 2 | 7 |  |
Preoperative anticoagulant medication | 19 (26.4%) | 24 (33.3%) | 0.363 |
Bone mineral density (T-score) | −3.0 ± 1.2 | −2.8 ± 1.0 | 0.344 |
Preoperative levels | |||
 Hemoglobin (g/dL) | 12.1 ± 1.5 | 11.5 ± 1.7 | 0.063 |
 Hematocrit (%) | 36.1 ± 4.5 | 35.1 ± 3.6 | 0.141 |
 Albumin (g/dL) | 3.7 ± 0.4 | 3.7 ± 0.4 | 0.923 |
 Cholesterol (mg/dL) | 164.1 ± 37.6 | 158.7 ± 42.6 | 0.416 |