observed-to-expected ratio 中文意思是什麼
observed-to-expected ratio
解釋
觀察數與預期數比率-
It is however an international practice to compare treatment results of cancer using the " five - year relative survival rate " ( survival rate ), which is defined as the ratio of the proportion of observed survivors in a cohort of cancer patients to the proportion of expected survivors in a comparable set of individuals who do not have any cancer history
不過,國際慣例是利用五年相對存活率(存活率)比較癌癥的治療結果。存活率是指兩個比例的比率,亦即一批癌癥病人中實際生存人士的比例,及另一組可供比較(亦從未患癌癥)的人士中預計生存人士的比例。
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