Table 6.
Relative risk of revision with 95% confidence interval (CI) in 4,401 hip resurfacings (159 revisions). The data are based on a Cox regression model including age (< 54 or ≥ 55 years), sex, diagnosis, and the 6 most common HRA designs with BHR as reference
| RR | 95% CI | p-value | |
|---|---|---|---|
| BHR (reference) | 1 | – | |
| Corin | 1.34 | 0.57–3.16 | 0.5 |
| Converse Plus | 1.60 | 0.88–2.91 | 0.1 |
| Durom | 1.58 | 0.86–2.91 | 0.1 |
| ReCap | 1.17 | 0.68–2.01 | 0.6 |
| ASR | 1.83 | 1.23–2.72 | 0.003 |
| Female / Male | 1.98 | 1.44–2.71 | < 0.001 |
| Age (< 55 / ≥55 years) | 1.05 | 0.75–1.45 | 0.8 |
| Secondary / primary OA | 1.25 | 0.75–2.10 | 0.4 |
| Hospital production volume: ≥ 100 / < 100 procedures | 0.61 | 0.42–0.89 | 0.009 |