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| Risk groups | HR | aHR |
|---|---|---|
| Low-risk group | Reference | Reference |
| Medium-risk group |
2.69
(95CI, 1.94, 3.74; p<0.001) |
2.67
(95%CI, 1.92, 3.71; p<0.001) |
| High-risk group |
8.79
(95CI, 6.31, 12.24; p<0.001) |
8.63
(95CI, 6.18, 12.07; p<0.001) |
Abbreviation: aHR, adjusted hazard ratio.
