Prevalence and Incidence of Headache


About prevalence and incidence statistics: The term 'prevalence' of Headache usually refers to the estimated population of people who are managing Headache at any given time. The term 'incidence' of Headache refers to the annual diagnosis rate, or the number of new cases of Headache 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 Headache: 45 million Americans get chronic headaches. 20 million American women (NWHIC).
Prevalance Rate: approx 1 in 6 or 16.54% or 45 million people in USA [about data]
Last revision: Nov 3, 2003

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