Characteristics | Cases N(%) | Controls N(%) | p-value |
---|---|---|---|
Number | 308 | 423 | |
Age, year (mean ± SD) | 43.47 ± 11.303 | 42.52 ± 13.135 | 0.396 |
> 45 | 133 (43%) | 198 (47%) | |
≤ 45 | 175 (57%) | 225 (53%) | |
Hip lesions | |||
Unilateral | 66 (21%) | ||
Bilateral | 242 (79%) | ||
Clinical stages | |||
III/IV | 218 (71%) | ||
I/II | 90 (29%) |