Kaplan-Meier curves of complications during follow-up of the global cohort. Thrombosis-free survival curves in all MPN (A) and in the ET population (B). Hemorrhage-free survival curves in all MPN (C) and in the ET population (D). Evolution-free survival curves (E) and overall survival curves (F). 3NEG, triple negative; NR, not reached; O, other MPNs.