V2EX absolute risk reduction

Absolute Risk Reduction

释义 Definition

绝对风险降低(率):在医学研究或临床试验中,指治疗组对照组之间“事件发生风险”的绝对差值(通常用百分比表示)。常缩写为 ARR
例如:对照组发病率 10%,治疗组 6%,则 ARR = 10% 6% = **4%**。

发音 Pronunciation (IPA)

/bslut rsk rdkn/

例句 Examples

The absolute risk reduction was 4% after treatment.
治疗后,绝对风险降低为 4%。

Although the relative risk reduction looked impressive, the absolute risk reduction was small because the baseline risk was low.
尽管相对风险降低看起来很显著,但由于基线风险较低,绝对风险降低其实很小。

词源 Etymology

该短语由三部分组成:absolute(“绝对的”)+ risk(“风险/发生概率”)+ reduction(“降低/减少”)。在循证医学中,用“absolute”强调它是直接用两组风险做减法得到的差值,不同于“relative(相对的)”那种按比例变化来表达效果的方式。

相关词 Related Words

文献与作品 Notable Works

  • Users’ Guides to the Medical Literature(《医学文献使用者指南》;JAMA/循证医学经典系列)
  • Clinical Epidemiology: The Essentials(《临床流行病学要义》;循证医学入门常用教材)
  • Cochrane Handbook for Systematic Reviews of Interventions(《Cochrane 系统综述手册》;系统综述方法学权威指南)
  • CONSORT Statement(随机对照试验报告规范;常涉及 ARR、NNT 等效果量的呈现方式)
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