noun
risk ratio; hazard rate; percentage of risk
Statistical term used in fields such as medicine, epidemiology, and engineering to express the probability or proportion of an adverse event.
この研究では、喫煙者の肺がん危険率が非喫煙者の数倍に達することが示された。
This study showed that the lung cancer risk ratio for smokers reaches several times that of non-smokers.
noun
significance level; level of significance
In statistical hypothesis testing, the threshold probability (often denoted α) below which a result is considered statistically significant. This usage is less common than 有意水準.
分析では危険率5%を有意水準として採用した。
In the analysis, a significance level of 5% was adopted as the threshold.
リスク比 is a common alternative for 'risk ratio', often used in medical contexts. 危険率 can also mean 'risk ratio', but リスク比 is more explicit.
Compound of 危険 (danger, risk) and 率 (rate, proportion). The term is a modern technical coinage used in statistics and risk analysis.