prevalence
C1Formal, Academic, Technical
Definition
Meaning
The fact or condition of being widespread, common, or extensive at a particular time or place.
In medical and public health contexts, the proportion of a population found to have a condition (typically a disease or risk factor) at a specific point in time, distinguishing it from 'incidence' which measures new cases over a period.
Linguistics
Semantic Notes
Refers to the state or degree of being prevalent. Often implies something is not just present, but dominant or influential. In statistics, a precise quantitative term.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning. Usage frequency is similar, with perhaps slightly higher use in American public health discourse.
Connotations
Neutral to formal in both varieties. Carries a slightly more technical/clinical connotation in healthcare contexts.
Frequency
Common in academic, medical, and journalistic writing in both dialects.
Vocabulary
Collocations
Grammar
Valency Patterns
The prevalence of [NOUN PHRASE] (e.g., The prevalence of diabetes)A prevalence among [GROUP] (e.g., a high prevalence among adolescents)Prevalence is high/low/increasing in [LOCATION/GROUP]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None directly. Considered a formal noun, not used idiomatically.”
Usage
Context Usage
Business
Used to discuss market trends, e.g., 'the prevalence of remote working' or 'the prevalence of digital payment systems'.
Academic
Core term in epidemiology, sociology, and data analysis. Used precisely to quantify phenomena.
Everyday
Less common. Might be used in news discussions about social issues or health topics.
Technical
A key metric in public health (point prevalence, period prevalence). Must be distinguished from 'incidence'.
Examples
By Part of Speech
verb
British English
- N/A - No verb form. The related verb is 'prevail'.
American English
- N/A - No verb form. The related verb is 'prevail'.
adverb
British English
- N/A - No direct adverb. Use 'commonly', 'widely', or 'prevalently' (rare).
American English
- N/A - No direct adverb. Use 'commonly', 'widely', or 'prevalently' (rare).
adjective
British English
- The prevalent belief is that the policy will succeed.
- During the winter, colds are more prevalent.
American English
- The prevalent theory has been challenged.
- Smartphone use is prevalent across all age groups.
Examples
By CEFR Level
- N/A - This word is not typically taught at A2 level.
- The prevalence of mobile phones has changed how we communicate.
- There is a high prevalence of bicycles in this city.
- Researchers noted an increasing prevalence of the condition in urban areas.
- The report highlighted the alarming prevalence of misinformation online.
- The study calculated a point prevalence of 2.3% for the disorder in the adult population.
- The prevalence of this architectural style in the region suggests a shared cultural history.
Learning
Memory Aids
Mnemonic
Think of PREVALENT (widespread) + the suffix -ENCE which forms a noun meaning 'the state of being'. So, prevalence is the *state of being prevalent*.
Conceptual Metaphor
PREVALENCE IS DOMINANCE / PREVALENCE IS WEIGHT (e.g., 'high prevalence' carries statistical 'weight').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with распространение (which can mean 'distribution' or 'dissemination'). 'Prevalence' is specifically about how *common* something is. 'Incidence' (заболеваемость) is a related but distinct concept.
Common Mistakes
- Using 'prevalence' to mean 'incidence' (new cases).
- Using it in overly casual contexts where 'commonness' would suffice.
- Misspelling as 'prevelance'.
- Using it as a countable noun (e.g., 'a prevalence' is unusual).
Practice
Quiz
Which of the following sentences uses 'prevalence' CORRECTLY?
FAQ
Frequently Asked Questions
Prevalence measures the total number of existing cases in a population at a given time. Incidence measures the number of *new* cases occurring over a specific period. Prevalence is like a snapshot; incidence is like a video of new arrivals.
Yes, it is neutral. You can speak of 'the prevalence of renewable energy' or 'the prevalence of literacy'. However, it is often used for problems or phenomena under study.
Generally, it is an uncountable noun. You do not say 'one prevalence, two prevalences'. You speak of 'high prevalence', 'a level of prevalence', or use it with a quantifier like 'rate' (e.g., prevalence rates).
The adjective form is 'prevalent', meaning widespread or common in a particular area or time.
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