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Comparison of taper-slip and composite beam stems
| Factor | Stem type |
p-value | |
|---|---|---|---|
| Taper-slip | Composite beam | ||
| Number | 245,401 (83.8%) | 47,586 (16.2%) | n/a |
| Mean age (range) | 71.9 (12–103) | 73.6 (15–101) | < 0.001a |
| Death, n (%) | 25,761 (10.5) | 8,168 (17.2) | < 0.001 b |
| Revised, n (%) | 3,080 (1.3) | 810 (1.7) | < 0.001 b |
ANOVA
χ2 test
