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Success rate in subgroups according to onset time
| Group | Outcome | UGHR | FGAR | Total | P value |
|---|---|---|---|---|---|
| 0–12 h | Success | 504 (97.30%) | 392 (96.80) | 896 | 0.6500 |
| Fail | 14 | 13 | 27 | ||
| 12h–24 h | Success | 387 (95.56%) | 384 (90.57%) | 771 | 0.0049 |
| Fail | 18 | 40 | 58 | ||
| > 24 h | Success | 181 (92.35%) | 160 (90.91%) | 341 | 0.6164 |
| Fail | 15 | 16 | 31 |
