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Life table analysis.
| Interval (months) | Implants at risk | Failed implants | Dropouts/lost to follow-up | Implant survival rate | Cumulative survival rate |
|---|---|---|---|---|---|
| 0–6 | 885 | 17 | 19 | 98.08% | 98.08% |
| 6–12 | 849 | 3 | 182 | 99.65% | 97.73% |
| 12–24 | 664 | 1 | 140 | 99.85% | 97.59% |
| 24–36 | 523 | 0 | 156 | 100.00% | 97.59% |
| 36–48 | 367 | 1 | 87 | 99.73% | 97.32% |
| 48–60 | 279 | 1 | 99 | 99.64% | 96.97% |
| 60–72 | 179 | 1 | 10– | 99.44% | 96.43% |
| 72–84 | 168 | 1 | 0 | 99.40% | 95.85% |
| 84–96 | 167 | 0 | 6 | 100.00% | 95.85% |
| 96–108 | 161 | 0 | 125 | 100.00% | 95.85% |
| 108–120 | 36 | 0 | 36 | 100.00% | 95.85% |
