Fig. 1
From: Cytoreductive treatment patterns among US veterans with polycythemia vera
Study design. PV, polycythemia vera. * ≥ 12 months. †Patients were followed up from the index date until the date of the earliest event: death, disenrollment, or end of the study period. ‡The index date was defined as the date of each respective patient’s first claim with a PV diagnosis during the identification period