Prognosis
The IPSS-R is a scoring system which guides prognosis. It is based on the severity of cytopenias, cytogenetic abnormalities and blast percentage. The risk of transformation to AML increases with each risk category.
| Risk category | Median survival |
|---|---|
| Very low | 8.8 years |
| Low | 5.3 years |
| Intermediate | 3 years |
| High | 1.6 years |
| Very high | 0.8 years |
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