Prevalence and Incidence of Acute Appendicitis


About prevalence and incidence statistics: The term 'prevalence' of Acute Appendicitis usually refers to the estimated population of people who are managing Acute Appendicitis at any given time. The term 'incidence' of Acute Appendicitis refers to the annual diagnosis rate, or the number of new cases of Acute Appendicitis 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.

Incidence (annual) of Acute Appendicitis: 25 per 10,000 (age 10-17), 1-2 per per 10,000 (under 4)
Incidence Rate: approx 1 in 400 or 0.25% or 680,000 people in USA [about data]
Lifetime risk for Acute Appendicitis: 8.6% risk for males, 6.7% for females (Rothrock et al, 2000).

Prevelance statistics about Acute Appendicitis: The following statistics relate to the prevalence of Acute Appendicitis:

  • 7-8% people affected by appendicitis at some stage in their life in the US (Mayo Clinic)

Last revision: April 9, 2003

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