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Demographic description of three classes (mean ± SD)
| Group | Number of patients | Age (years) | Height (m) | BMI (kg/m2) | Speed (m/second) | Linear wear rate (mm/year) |
|---|---|---|---|---|---|---|
| Low wear | 25 | 63.7 ± 7.8 | 1.7 ± 0.07 | 27.3 ± 4.3 | 1.1 ± 0.1 | 0.06 ± 0.02 |
| Moderate wear | 29 | 60.4 ± 10.7 | 1.7 ± 0.08 | 26.5 ± 4.7 | 1.1 ± 0.1 | 0.1 ± 0.03 |
| High wear | 19 | 58.3 ± 9.8 | 1.7 ± 0.08 | 28.6 ± 5.1 | 1.1 ± 0.2 | 0.3 ± 0.04 |
