Prevalence and Incidence of Pelvic Inflammatory Disease


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About prevalence and incidence statistics: The term 'prevalence' of Pelvic Inflammatory Disease usually refers to the estimated population of people who are managing Pelvic Inflammatory Disease at any given time. The term 'incidence' of Pelvic Inflammatory Disease refers to the annual diagnosis rate, or the number of new cases of Pelvic Inflammatory Disease 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 Pelvic Inflammatory Disease: 1 million women have a PID episode each year (NIAID)
Incidence Rate: approx 1 in 272 or 0.37% or 1 million people in USA [about data]
Prevalance of Pelvic Inflammatory Disease: Each year in the United States, more than 1 million women experience an episode of acute PID. More than 100,000 women become infertile each year as a result of PID, and a large proportion of the ectopic pregnancies occurring every year are due to the consequences of PID.1 ... Each year in the United States, more than 1 million women experience an episode of acute PID, with the rate of infection highest among teenagers.2

Prevelance of Pelvic Inflammatory Disease discussion: Each year up to 1 million women in the United States develop PID, a serious infection of the reproductive organs. As many as half of all cases of PID may be due to chlamydial infection, and many of these don't have symptoms. PID can cause scarring of the fallopian tubes, which can block the tubes and prevent fertilization from taking place. Researchers estimate that 100,000 women each year become infertile because of PID. 3

Footnotes:
1. excerpt from PID: DSTD
2. excerpt from Pelvic Inflammatory Disease, NIAID Fact Sheet: NIAID
3. excerpt from Chlamydial Infection, NIAID Fact Sheet: NIAID

Last revision: June 10, 2003

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