Table 4.
Percentage of erosions relative to device size
| Device size | Device size percentage of sales† | Total erosions | Percentage of erosions (n/27) | Percentage of removals (n/609) | Time to removal, months (SD) |
|---|---|---|---|---|---|
| 13 beads | 14.1 | 8 | 29.6 | 1.3 | 26.7 (10.7) |
| 14 beads | 25.1 | 5 | 18.5 | 0.8 | 27.5 (16.2) |
| 15 beads | 27.1 | 2 | 7.4 | 0.3 | 27.6 (16.4) |
| 16 beads | 20.6 | 2 | 7.4 | 0.3 | 28.9 (NA) |
| 17 beads | 13.1 | 3 | 11.1 | 0.5 | 7.5 (1.6) |
| Unknown | — | 7 | 25.9 | 1.1 | NA |
| Total | 100.0 | 27 | 100.0 | 4.4 | 25.0 (12.9) |
†Sales utilization data used as surrogate for number of devices implanted.
NA = Not Applicable.