Table 2.

Established and novel, potential risk factors for thrombosis in patients with polycythemia vera (PV) or essential thrombocythemia (ET).

Established risk factorsPotential risk factors
PV Age ≥ 60 y Leukocytosis41  
 Previous thrombosis V617F allele ≥ 75%48  
ET Age ≥ 60 y Leukocytosis42  
 Previous thrombosis JAK2V617F mutation44  
 Platelets ≥ 1500 x 109/L JAK2V617F homozygosity33  
Established risk factorsPotential risk factors
PV Age ≥ 60 y Leukocytosis41  
 Previous thrombosis V617F allele ≥ 75%48  
ET Age ≥ 60 y Leukocytosis42  
 Previous thrombosis JAK2V617F mutation44  
 Platelets ≥ 1500 x 109/L JAK2V617F homozygosity33  
View Large