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The relative risk (RR) or risk ratio is the ratio of the probability of an outcome in an exposed group to the probability of an outcome in an unexposed group. Together with risk difference and odds ratio, relative risk measures the association between the exposure and the outcome.
What is Relative Risk? Relative risk is the ratio of the probability of an adverse outcome in an exposure group divided by its likelihood in an unexposed group. This statistic indicates whether exposure corresponds to increases, decreases, or no change in the probability of the adverse outcome.
在医学统计学中，有三个关于比值的概念，分别为相对危险度（relative risk，RR，也称 risk ratio）、风险比（hazard ratio，HR）和优势比（odds ratio，OR）。 很多同行一看见这三个 概念 就容易混绕。
Mar 11, 2024 · 相对危险度（Relative Risk）可帮助你了解具有不同人口统计学特征或不同暴露的两组人之间发生某种疾病的可能性有多大。 本期AJE将通过实例讲解相对危险度的相关知识，帮助大家更好的了解它。
相对危险度（relative risk，RR）：亦称危险度比，是暴露组的危险度（测量指标是累积发病率）与对照组的危险度之比。 暴露组与对照组的发病密度之比称为率比（rate ratio）。
