Task: Answer Verification
Input (English): Question: Is red blood cell distribution width a significant prognostic marker in advanced heart failure , independent of hemoglobin levels?
Answer: RDW is a significant prognostic factor for an adverse outcome in patients with advanced stage heart failure who have experienced recent decompensation, independent of the presence of anemia or malnutrition, and is superior to more traditionally used indices. RDW may be associated with severe disease by reflecting subtle metabolic and proinflammatory abnormalities in HF.
Output (English): yes