V2EX risk ratio

Risk Ratio

释义 Definition

risk ratio(风险比):统计学与流行病学中常用的效应量,表示“暴露组/处理组”的事件发生风险与“对照组/未暴露组”的事件发生风险之比。
常写作 RR。RR = 1 表示两组风险相同;RR > 1 表示暴露组风险更高;RR < 1 表示暴露组风险更低。
(注:在某些语境中也会与 relative risk 同义使用。)

发音 Pronunciation (IPA)

/rsk reio/

例句 Examples

The risk ratio is 2.0.
风险比为 2.0。

After adjusting for age and smoking, the study reported a risk ratio of 0.78, suggesting the treatment reduced the risk of hospitalization compared with the control group.
在对年龄和吸烟情况进行校正后,研究报告的风险比为 0.78,提示与对照组相比,该治疗降低了住院风险。

词源 Etymology

risk 源自意大利语 risco/risco(与“危险、风险”相关的航海用语发展而来),后进入法语与英语;ratio 源自拉丁语 ratio,意为“计算、比例、比率”。合在一起的 risk ratio 直观表达“风险的比值”,在现代医学统计与公共卫生研究中被固定用作衡量两组风险差异的指标名称。

相关词 Related Words

文献与著作 Literary & Notable Works

  • Modern Epidemiology(Rothman, Greenland, Lash)
  • Epidemiology(Leon Gordis)
  • Statistical Methods in Medical Research(Armitage, Berry, Matthews)
  • Clinical Epidemiology: The Essentials(Fletcher, Fletcher, Fletcher)
  • Introduction to Meta-Analysis(Borenstein et al.)
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