Table 2.
Continuous variables included in a stepwise logistic regression
| Variable | Mean | SD | Range | Median |
|---|---|---|---|---|
| Age at surgery (y) | 46.1 | 6.8 | 25–65 | 46.3 |
| Height (cm) | 165.5 | 8.6 | 149–195 | 164 |
| Weight (kg) | 75 | 14.4 | 42–114 | 73 |
| Body mass index | 27.3 | 4.1 | 16–42.6 | 27.3 |
| Cup size (mm) | 50.3 | 3.81 | 46–60 | 50.0 |
| PE thickness (mm) | 7.03 | 1.93 | 4.9–11.9 | 6.9 |
| Abduction angle of the cup (°) | 45.26 | 7.98 | 28–72 | 45.0 |
| Follow-up (y) | 6.0 | 1.9 | 2.0–10.5 | 6.0 |
| Linear wear (mm) | 2.21 | 1.57 | 0–6.9 | 1.86 |
| Linear wear rate (mm/y) | 0.415 | 0.364 | 0–2.284 | 0.346 |
| Volumetric wear (mm3) | 859 | 781 | 0–6000 | 701 |
| Volumetric wear rate (mm3/y) | 153 | 134 | 0–815 | 115 |
PE polyethylene, SD standard deviation