Analysis reveals changes in 5-year survival rates do not correlate with cancer mortality, highlighting diagnosis variations.
Although 5-year survival is a valid measure for comparing cancer therapies in a randomized trial, our analysis shows that changes in 5-year survival over time bear little relationship to changes in cancer mortality. Instead, they appear primarily related to changing patterns of diagnosis. JAMA. 2000.
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H. Gilbert Welch (2000) studied this question.
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