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What is the life expectancy of aplastic anemia in the elderly?

According to a 2017 study published in *Haematologica*, the 5-year survival rate for patients aged 60 or older with aplastic anemia was significantly lower than for younger age groups, at just 38.1%. This disparity highlights the critical question: what is the life expectancy of aplastic anemia in the elderly, and what factors influence this prognosis?