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Overall survival according to creatinine level ≤0.9 mg/dL (green) or >0.9 mg/dL (red) at entry into the registry. Creatinine rather than eGFR was used for survival analysis, since the eGFR formula contains age as one of the variables. (A) Survival analysis for pts with essential thrombocythemia (ET); (B) survival analysis for pts with polycythemia vera (PV); (C) survival analysis for pts with myelofibrosis (MF), including pts with primary MF, post-PV MF, and post-ET MF.
