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| Horizon to onset | N. of patients | N. of patients with onset |
|---|---|---|
| 0 h | 1,943 | 786 (40.5%) |
| 1 h | 1,938 | 782 (40.4%) |
| 2 h | 1,810 | 690 (38.1%) |
| 3 h | 1,657 | 606 (36.6%) |
| 4 h | 1,504 | 532 (35.4%) |
| 5 h | 1,352 | 467 (34.5%) |
| 6 h | 1,217 | 420 (34.5%) |
