Comparison of safety and efficacy results
| Previous Device Procedure | Success | Complications | ||
|---|---|---|---|---|
| No. | P Valuea | No. | P Valuea | |
| 0 (n = 337) | 320 (95) | NA | 2 (0.6) | NA |
| 1 (n = 90) | 88 (98) | >.05 | 0 | >.05 |
| 2 (n = 34) | 31 (91) | >.05 | 1 (2.9) | >.05 |
| 3 (n = 9) | 7 (78) | .0256b | 0 | >.05c |
| 4 (n = 4) | 3 (75) | >.05b | 0 | >.05c |
| 5 (n = 1) | 1 (100) | >.05b | 0 | >.05c |
Note.—Data in parentheses are percentages. NA = not applicable.
a Compared with results for 0 previous procedures.
b Groups with three to five procedures pooled, P = .0096.
c Groups with three to five procedures pooled, P > .05.