Table 2.

Prevalence of +1q in different stages of MPN

MPN-RC databaseISMMS databaseTotal
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)† 
MPN-RC databaseISMMS databaseTotal
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.

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