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Number of patients requiring treatment during study period.
| Genetic severity score | Patients requiring treatment during study period | Number of patients in group | Percentage of patients requiring treatment |
|---|---|---|---|
| 1a | 3 | 23 | 13% |
| 1b | 6 | 17 | 35.3% |
| 2a | 10 | 43 | 23.3% |
| 2b | 23 | 55 | 41.8% |
| 3 | 7 | 15 | 46.7% |
