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| Hospital | Mortality | Total | p value | |
|---|---|---|---|---|
| No | Yes (%) | |||
| Group A | 5,183 | 297 (5.4) | 5,480 | 0.283 |
| Group B | 1,049 | 70 (6.3) | 1,119 | |
| Total | 6,232 | 367 (5.6) | 6,599 | |
Group A = hospitals in which more than 100 procedures were performed; Group B = hospitals in which less than 100 procedures were performed.
