Risk of revision by age, sex, body mass index and femoral implant material
| Predictor | HR (95% CI) |
|---|---|
| Oxidized zirconium femur | 1.110 (0.567–2.179) |
| Age | 0.968 (0.939–0.997) |
| Female sex | 0.450 (0.269–0.754) |
| Body mass index | 1.023 (0.994–1.054) |
CI = confidence interval; HR = hazard ratio.