Table 1.
Patient demographics
| Parameters | Younger group (< 65 years) | Elderly group (> 66 years) | P-value |
|---|---|---|---|
| Number of patients (hips) | 100 (114) | 100 (112) | |
| Male:female ratio | 56/44 | 45/55 | 0.134c |
| Agea (years) | 43.9 ± 6.11 (31–50) | 78.9 ± 12.11 (66–91) | 0.0001d |
| Weighta (kg) | 76.3 ± 9.23 (56–104.8) | 78.5 ± 10.5 (59–109) | 0.412d |
| Heighta (cm) | 165.1 ± 8.73 (148–185) | 161 ± 9.72 (145–184) | 0.613d |
| Body mass index (height/m2)a | 28.3 ± 4.4 (25.5–30.8) | 30.2 ± 4.2 (28.1–32) | 0.591 |
| Diagnosis | |||
| Osteonecrosis | 61 (61 %) | 36 (36 %) | 0.457c |
| Osteoarthritis | 19 (19 %) | 52 (52 %) | |
| Developmental dysplastic hip | 16 (16 %) | – | |
| Traumatic arthritis | 4 (4 %) | – | |
| Femoral neck fracture | – | 12 (12 %) | |
| Follow-upb (years) | 7.5 (6−9) | 7.6 (6−6) | 0.615d |
aThe values are given as the mean and the standard deviation, with the range in parentheses
bThe value is given as the mean, with the range in parentheses
cChi-square test
dStudent t-test