Word · Frequency #5906
prevalence
普遍，流行，广泛；[医] 患病率，流行率
核心释义
the quality of prevailing generally; being widespread; (epidemiology) the ratio of occurrences of a disease or event to the population at risk
- 1.
流行的性质或状态；广泛传播
The quality or condition of being prevalent; wide extension or spread.
- 2.
在给定时间内,特定统计人群中某疾病的总病例数除以该人群中的个体数
The total number of cases of a disease in a given statistical population at a given time, divided by the number of individuals in that population.
流行的性质或状态；广泛传播；在给定时间内,特定统计人群中某疾病的总病例数除以该人群中的个体数；普遍；流行；广泛；[医] 流行
用法In use
The prevalence of smartphones has changed how we communicate.
用法提示：句中 prevalence 表示‘普遍存在’，后接 of 短语说明普遍的事物。
There is a high prevalence of online shopping among young people.
用法提示：prevalence 在此指‘流行程度’，常用于 there is a ... prevalence of 结构。
The prevalence of remote work has increased since the pandemic.
用法提示：prevalence 作主语，表示‘普遍性’，后接 of 短语说明现象。
the prevalence of sth
The prevalence of obesity has increased dramatically in recent decades.
肥胖的普遍程度在过去几十年里显著增加。
prevalence of sth among/in group
常用于流行病学语境，表示特定人群中的患病率。
相关词与表达Connections
搭配Collocations
- high prevalence
- 高患病率；高流行率
- The high prevalence of diabetes in the region is alarming.该地区高患病率的糖尿病令人担忧。
- low prevalence
- 低患病率；低流行率
- The disease has a low prevalence in developed countries.这种疾病在发达国家患病率很低。
- prevalence of
- ……的流行；……的患病率
- The prevalence of obesity has increased dramatically over the past decade.过去十年中肥胖的流行率急剧上升。
近义词Synonyms
学习提示Learner notes
记忆技巧Memory Tip
联想'prevail'（盛行），'prevalence'是其名词形式，意为普遍、流行。
语境与语域Context & Register
mixed
发音与拼写Pronunciation & Spelling
These words share the spelling ending '-ence' but differ in stress and vowel quality; none rhymes with 'prevalence' (stressed vowel /e/ in first syllable).
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.