Prevalence and Incidence of Insomnia
| About prevalence and incidence statistics: The term 'prevalence' of Insomnia usually refers to the estimated population of people who are managing Insomnia at any given time. The term 'incidence' of Insomnia refers to the annual diagnosis rate, or the number of new cases of Insomnia 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 Insomnia: 32 million (unreliable estimate)
Prevalance Rate: approx 1 in 8 or 11.76% or 32 million people in USA [about data]
Last revision: Nov 13, 2003
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