Table 2.
Prognosis of MDS according to revised IPSS risk score
| IPSS-R risk category (% IPSS-R population) | Overall score | Median survival (y) in the absence of therapy | 25% AML progression (y) in the absence of therapy |
|---|---|---|---|
| Very low (19) | ≤1.5 | 8.8 | Not reached |
| Low (20) | >1.5≤3.0 | 5.3 | 10.8 |
| Intermediate (20) | >3.0≤4.5 | 3 | 3.2 |
| High (13) | >4.5≤6.0 | 1.6 | 1.4 |
| Very high (10) | >6.0 | 0.8 | 0.7 |
Abbreviations: MDS, myelodysplastic syndrome; IPSS, International Prognostic Scoring System; IPSS-R, Revised International Prognostic Scoring System; AML, acute myeloid leukemia; y, years.