prevalence
prevalence — 名詞
1. how often or widely something exists, happens, or is found across a region, amon
普遍性
某事物常見或廣泛存在的程度
how often or widely something exists, happens, or is found across a region, among a group, or at a given time
The prevalence of heart disease among older adults worries doctors like Dr. Tunde.
心臟病在老年人當中的普遍性讓像 Tunde 醫生這樣的醫師感到憂心。
prevalence + of + among [group]
Sumin read a report on the prevalence of dengue fever in southern Vietnam.
Sumin 讀了一份關於越南南部登革熱盛行率的報告。
prevalence + of + in [location]
The high prevalence of smartphone use has changed how young people in Noa's class communicate.
智慧型手機的高使用率改變了 Noa 班上年輕人的溝通方式。
Kabir's study found a low prevalence of tooth decay in children who use fluoridated water.
Kabir 的研究發現，飲用含氟水的孩童蛀牙發生率很低。
Hoa was surprised by the prevalence of English signs in shops near her apartment.
Hoa 對她公寓附近商店裡英文招牌的普遍性感到驚訝。
- frequency
focuses on how often something happens within a timeframe, without the sense of geographical or social spread
- incidence
more technical, usually about the number of new cases of a disease or issue appearing in a population
- commonness
less formal and simpler; describes the everyday state of being found or seen often
- occurrence
focuses on something taking place or existing, without emphasis on how widespread it is
- rarity
the state of being uncommon, infrequent, or hard to find
用法筆記
Prevalence is most often used in formal or academic writing, particularly in health, social science, and statistics. The preposition 'of' almost always follows the word: the prevalence OF something (e.g., the prevalence of a disease).