Prevalence and Incidence of Stuttering
| About prevalence and incidence statistics: The term 'prevalence' of Stuttering usually refers to the estimated population of people who are managing Stuttering at any given time. The term 'incidence' of Stuttering refers to the annual diagnosis rate, or the number of new cases of Stuttering diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics. |
Prevalance of Stuttering: about 1% of adults
Prevalance Rate: approx 1 in 100 or 1.00% or 2.7 million people in USA [about data]
Last revision: Nov 3, 2003
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