Table 1.
Patient characteristics
| Characteristic | Group O (n = 41) | Group Y (n = 123) | p Value |
|---|---|---|---|
| Age (years) | 53.0 ± 10.3 | 36.7 ± 2.7 | < 0.0001* |
| Height (cm) | 155.1 ± 3.7 | 155.8 ± 4.9 | 0.357* |
| Weight (kg) | 55.2 ± 6.9 | 54.0 ± 7.1 | 0.341* |
| Body mass index (kg/m2) | 22.9 ± 2.5 | 22.3 ± 2.9 | 0.171* |
| Followup (years) | 8.8 ± 2.6 | 9.3 ± 2.9 | 0.295* |
| Bilateral/unilateral | 23/18 | 59/64 | 0.367† |
| Perioperative hemorrhage (mL) | 322.7 ± 141.6 | 364.6 ± 211.0 | 0.238* |
| Postoperative hemorrhage (mL) | 228.5 ± 66.4 | 251.3 ± 85.1 | 0.119* |
| Preoperative joint space (mm) | 2.9 ± 1.4 | 3.2 ± 1.3 | 0.221* |
| Center-edge angle (degrees) | 4.2 ± 6.9 | 1.1 ± 9.8 | 0.065* |
| Acetabular head index | 53.9 ± 8.9 | 51.3 ± 7.0 | 0.061* |
| Joint congruency (good/poor) | 19/22 | 66/57 | 0.417† |
Values are expressed as mean ± standard deviation; *statistically analyzed by Student’s t test; †statistically analyzed by chi square test; Group O = patient 50 years or older; Group Y = patients younger than 50 years.