Adverse events (per procedure) in centers with low (group A) and high (group B) numbers of cases/hospital
| Group A (n = 187) | Group B (n = 513) | P Value | |||
|---|---|---|---|---|---|
| No. | % (95% CI) | No. | % (95% CI) | ||
| Specific complications | 24 | 12.8 (8.6–18.2) | 64 | 12.5 (9.8–15.5) | .89 |
| TE | 13 | 7.0 (3.9–11.3) | 37 | 7.2 (5.2–9.7) | .90 |
| Rupturea | 7 | 3.7 (1.6–7.3) | 11 | 2.1 (1.1–3.7) | .27 |
| Deviceb | 4 | 2.1 (0.7–5.1) | 16 | 3.1 (1.9–4.9) | .49 |
| Nonspecific complications | 6 | 3.2 (1.3–6.5) | 10 | 1.9 (1.0–3.4) | .39 |
| Total | 30 | 16.0 (11.3–1.8) | 74 | 14.4 (11.6–17.7) | .59 |
a Intraoperative rupture.
b Device-related complications.