Current advances in the field of medicine have aided in the early detection and treatment of cancer, leading to an increased rate of survivorship among cancer patients after an initial diagnosis. Approximately 66% of people diagnosed with cancer are expected to live at least 5 years after diagnosis. [1] The National Cancer Institute has estimated that, as of January 2006, an astonishing 3.8% of the US population, or 11.4 million people, are cancer survivors. [2] Additionally, 60% of these cancer survivors are 65 years of age or older, and approximately 14% of the 11.4 million estimated cancer survivors were diagnosed 20 or more years ago, [2] thus giving rise to a population at risk for post-therapy complications.
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机译：医学领域的最新进展有助于癌症的早期发现和治疗，从而在最初诊断后提高了癌症患者的生存率。预计约66％的被诊断患有癌症的人在诊断后至少可以活5年。 [1]美国国家癌症研究所（National Cancer Institute）估计，截至2006年1月，惊人的3.8％的美国人口（即1,140万人）是癌症幸存者。 [2]此外，这些癌症幸存者中有60％的年龄为65岁或65岁以上，在估计的1140万癌症幸存者中，约有14％在20年前或更早之前被诊断出，[2]治疗后并发症。
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