prevalence
n.-
1 being common (n.) C1 Advanced Academicthe fact that something is common or happens in many places.
the state or condition of being widespread or predominant in a particular area or at a particular time.
ExampleThe prevalence of smartphones has changed how we communicate with our friends.
ExampleThe prevalence of traditional folk motifs in modern architecture suggests a renewed interest in regional identity.
UsageOften followed by the preposition 'of'.
- commonness
- frequency
- ubiquity
-
2 medical/statistical rate (n.) C1 Advanced Technical Medicinethe percentage of people in a group who have a specific disease or condition at one time.
the total number of cases of a disease in a given population at a specific time, usually expressed as a fraction or percentage.
ExampleDoctors are worried about the high prevalence of heart disease in the city.
ExampleEpidemiologists noted a significant increase in the prevalence of respiratory conditions among residents living near the industrial zone.
UsageCommonly used in public health and statistical reporting.
PitfallThe prevalence of the flu increased by 5% last week.The incidence of the flu increased by 5% last week.Use 'prevalence' for the total number of cases at a specific time, but use 'incidence' for the rate of new cases appearing over time.
Borrowed from Middle French prévalence.