V2EX absolute risk

Absolute Risk

定义 Definition

绝对风险:指在一定时间内,某个事件(如患病、死亡、不良反应)在某一人群中实际发生的概率/发生率。它描述“发生的可能性有多大”,常以百分比或“每1000人中有多少人发生”来表达。
(医学与流行病学中常与 relative risk 相对;absolute risk 更直观。)

发音 Pronunciation (IPA)

/bslut rsk/

例句 Examples

The absolute risk of infection is low.
感染的绝对风险很低。

Even if the relative risk doubles, the absolute risk may rise only from 1% to 2%, which is still small for most people.
即使相对风险翻倍,绝对风险也可能只是从1%上升到2%,对大多数人来说仍然不算高。

词源 Etymology

absolute 源自拉丁语 absolūtus,本义有“完全的、无条件的、独立的”,在这里强调“以实际数值呈现、不是相对比较”。risk 来自中世纪意大利语 risco/risico(含“危险、可能遭遇的损失”之意)。合在一起,absolute risk 就是“事件发生的实际概率”。

相关词 Related Words

文学与著作中的使用 Literary Works

  • Users’ Guides to the Medical Literature(JAMA 系列/汇编):在讲解如何解读研究结果时常用到 absolute risk 与相对指标的对比。
  • Fundamentals of Clinical Trials(Lawrence M. Friedman 等):在临床试验结果呈现与解释部分讨论 absolute risk(及其差值)。
  • Oxford Handbook of Medical Statistics:在风险、发生率与效应量的章节中使用 absolute risk 作为核心概念之一。
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