Chlamydia infection epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Maliha Shakil, M.D. [2], Aysha Anwar, M.B.B.S[3]
Overview
Worldwide, the incidence of chlamydia is estimated to be 131 million cases per year.[1] In 2014, the incidence of chlamydia was estimated to be 439 cases per 100,000 individuals in the United States.[2] The incidence of chlamydia in women has increased greatly between 1987 and 2003, from 79 to 467 cases per 100,000 individuals.[3] Almost two-thirds of new chlamydia infections occur among youth aged 15-24 years. It is estimated that 1 in 20 sexually active young women aged 14-24 years has chlamydia.[2] Females are more commonly affected with chlamydia infection than males. The female to male ratio is approximately 1.52 to 1.[4] The prevalence of chlamydia among non-Hispanic African Americans is 6.7 times the prevalence among non-Hispanic Whites.[2]
Epidemiology
Incidence
- Worldwide, the incidence of chlamydia is estimated to be 131 million cases per year.[1]
- In 2014, the incidence of chlamydia was estimated to be 439 cases per 100,000 individuals in the United States.[2]
- The incidence of chlamydia in women has increased greatly between 1987 and 2003, from 79 to 467 cases per 100,000 individuals.[3]
Prevalence
- In 2008, the prevalence of chlamydia in the adult population worldwide was estimated to be 9.1 million cases per year.
- It is estimated that 1 in 20 sexually active young women aged 14-19 years has chlamydia.[2]
Demographics
Age
- Almost two-thirds of new chlamydia infections occur among youth aged 15-24 years.
- It is estimated that 1 in 20 sexually active young women aged 14-24 years has chlamydia.[2]
Gender
- Females are more commonly affected with chlamydia infection than males.
- The female to male ratio is approximately 1.52 to 1.[4]
Race
- The prevalence of chlamydia among non-Hispanic African Americans is 6.7 times the prevalence among non-Hispanic Whites.[2]
References
- ↑ 1.0 1.1 WHO epidemiology http://www.who.int/mediacentre/factsheets/fs110/en/ (2016) Accessed on September 8, 2016
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Chlamydia CDC Fact Sheet. CDC.http://www.cdc.gov/std/chlamydia/stdfact-chlamydia-detailed.htm#_ENREF_3. Accessed on December 29, 2015
- ↑ 3.0 3.1 Miller KE (2006). "Diagnosis and treatment of Chlamydia trachomatis infection". Am Fam Physician. 73 (8): 1411–6. PMID 16669564.
- ↑ 4.0 4.1 Chlamydia Infection. Wikipedia.https://en.wikipedia.org/wiki/Chlamydia_infection#cite_note-LancetEpi2012-26. Accessed on December 29, 2015