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Prevalence of +1q in different stages of MPN
| MPN-RC database | ISMMS database | Total | |
|---|---|---|---|
| Proliferative phases of MPNs (PV, ET), n | 231 | 550 | 781 |
| No. (%) with +1q | 3 (1) | 10 (2) | 13 (2) |
| Myelofibrosis, n | 113 | 343 | 456 |
| No. (%) with +1q | 10 (9) | 33 (10) | 43 (9)* |
| MPN-AP/BP, n | 9 | 28 | 37 |
| No. (%) with +1q | 2 (22) | 14 (50) | 16 (43)† |
Incidence of gain of 1q in patients with MF vs PV and ET, P < .0001.
Incidence of gain of 1q in patients with MPN-AP/BP vs PV and ET, P < .0001.
