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What is the most common effect of advanced cancer diagnosis in older adults?

According to one study involving older adults with cancer, the mean prevalence of impaired daily living activities was approximately 36.7%. Functional decline, referring to a reduced ability to perform daily tasks, is the most common effect of advanced cancer diagnosis in older adults, significantly impacting their quality of life. This decline is often accelerated by the cancer itself, related treatments, and other age-related health issues.