prevalence vs prevalent

prevalence is a noun but prevalent is not a noun.

Word	Noun	Adjective	Verb	Adverb
prevalence	Yes	No	No	No
prevalent	No	Yes	No	No

prevalence (noun)	prevalent (noun)
the quality of prevailing generally; being widespread
a superiority in numbers or amount
(epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population

prevalence (adjective)	prevalent (adjective)
	most frequent or common