V2EX attributable fraction

Attributable Fraction

释义 Definition(中文)

归因分值 / 可归因分数(流行病学):在特定人群中,某种结局(如发病、死亡)中可归因于某一暴露因素(如吸烟、污染)的比例。常用于衡量“如果去除该暴露,结局可能减少多少”。

发音 Pronunciation(IPA)

/trbjtbl frkn/

例句 Examples

In this study, the attributable fraction for smoking was 30%.
在这项研究中,吸烟的归因分值为30%。

After adjusting for age and sex, the attributable fraction suggested that a substantial share of heart disease cases could be prevented by reducing long-term air pollution exposure.
在对年龄和性别进行校正后,归因分值表明:若降低长期空气污染暴露,相当一部分心脏病病例可能是可以预防的。

词源 Etymology(中文)

attributable 来自 attribute(归因于、把……归属到),其词根与拉丁语 attribuere(分配、归于)相关;fraction 来自拉丁语 fractio(“破碎的一部分”),引申为“比例/分数”。合起来表示“可归因于某因素的那一部分比例”,在公共卫生与流行病学中形成固定术语。

关词 Related Words

文学与著作 Literary Works(出现示例)

  • Modern Epidemiology(Rothman, Greenland, Lash):讨论归因指标(包括 attributable fraction / population attributable fraction)的定义与应用场景。
  • A Dictionary of Epidemiology(Last 等):收录并解释 “attributable fraction” 等流行病学术语。
  • Epidemiology(Leon Gordis):在风险度量与公共卫生影响评估章节中常涉及归因分值/归因比例概念。
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