- In 2009 1,244,180 chlamydial infections were reported to the CDC from 50 states and the District of Columbia
- In 2009, the median state-specific chlamydia test positivity among women aged 15–24 years who were tested during visits to selected family planning clinics in all 50 states, the District of Columbia, Puerto Rico, and the Virgin Islands was 7.5% (range: 3.5% to 15.5%). Since 1997, median chlamydia positivity has increased steadily. This increase is likely because of increasing use of more sensitive test technology.
Chlamydia in Adolescents and Young Adults
- Compared with older adults, sexually active adolescents aged 15–19 years and young adults aged 20–24 years are at higher risk of acquiring STDs for a combination of behavioral, biological, and cultural reasons. For some STDs, such as C. trachomatis, adolescent females may have a physiologically increased susceptibility to infection because of increased cervical ectopy. The higher prevalence of STDs among adolescents also may reflect multiple barriers to accessing quality STD prevention services, including lack of insurance or other ability to pay, lack of transportation, discomfort with facilities and services designed for adults, and concerns about confidentiality.
- Estimates suggest that even though young people aged 15–24 years represent only 25% of the sexually experienced population, they acquire nearly half of all new STDs.
National Job Training Program
- Among women entering the National Job Training program in 43 states, the District of Columbia, and Puerto Rico, the median state-specific chlamydia prevalence was 11.3% (range: 4.2% to 19.0%).
Juvenile Corrections Facilities
- Among adolescent females entering juvenile corrections facilities, the median facility-specific chlamydia positivity was 14.4% (range: 1.8% to 35.7%). Among adolescent males entering juvenile corrections facilities, the median facility-specific chlamydia positivity was 6.0% (range: 0.0% to 19.4%).
Data from the Centers for Disease Control and Prevention's "Sexually Transmitted Disease Surveillance, 2009”, November 2010:
View the full "Sexually Transmitted Disease Surveillance 2009" report
For more information:
Centers for Disease Control and Prevention
Family Planning Annual Report: 2009 National Summary (PDF)
Trends in STDs in the United States 2009 (PDF)
From 1995-2012, JSI Research & Training Institute, Inc. successfully served as the coordinator of the Region I Infertility Prevention Project (IPP). Further information about the Region I Infertility Prevention Project can be obtained on JSI.com.