WHAT IS KNOWN ABOUT THE TOPIC?
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Among patients with HF, HL is associated with better disease knowledge but the impact of HL on self-care is uncertain.
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Health literacy has been associated with lower mortality in HF, but the results of previous studies may not be generalizable because the research was conducted with relatively young and highly-educated patients in United States settings.
WHAT DOES THIS STUDY ADD?
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Among very old patients, with low educational level, admitted for HF in 6 hospitals in Spain, no association was found between HL