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Survival rates between groups
| Stem type | Kaplan–Meier 8-year survival (95% CI) |
|---|---|
| Most implanted taper-slip (Exeter) | 97.9% (CI 97.8–98.0) |
| All other taper-slip | 97.6% (CI 97.4–97.8) |
| Most implanted composite beam (Charnley) | 97.5% (CI 97.2–97.8) |
| All other composite beam | 97.7% (CI 97.4–98.0) |
