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Rate of sexually transmitted infection cases reported among 13 to 18 year olds

In 2015, there were 13.36 cases of chlamydia per 1,000 residents 13 to 18 years old, 3.33 cases of gonorrhea per 1,000 13 to 18 year olds, 0.07 cases of Syphilis per 1,000 13 to 18 year olds, and 0.04 cases of HIV per 1,000 13 to 18 year olds.


Significance of Indicator: The rate of sexually transmitted infections among youth is an indicator of teen sexual behavior and overall sexual health.

what the data tell us

The rate of chlamydia infections per 1,000 13 to 18 year olds appears to have declined in recent years, from 17.52 per 1,000 in 2009 to 13.36 per 1,000 in 2015. The rate of gonorrhea infections appears to have decreased slightly as well, from 4.06 per 1,000 in 2008 to 3.33 per 1,000 in 2015. Much lower rates of 13 to 18 year olds are diagnosed with syphilis or HIV in Travis County.

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Definition: Cases of sexually transmitted infections per 1,000 youth ages 13 to 18 in Travis County

Data Source: Texas Department of State Health Services HIV/STD Program

Data Considerations: The rate above represents cases reported during the given calendar year, determined date of diagnosis (rather than infection).

the story behind the indicator

Rates of Chlamydia cases among 13 to 18 year olds appear to have decreased in recent years. Rates for gonorrhea cases among 13 to 18 year olds, however, have been increasing since 2011. A much smaller share of teens are diagnosed with human immunodeficiency virus and syphilis each year. For the population as a whole, the Austin/Travis County Health and Human Services Department that chlamydia cases appear to have increased in recent years, and Travis County has had a consistently higher rate of diagnoses than the state of Texas as a whole. The Texas Department of State Health Services reports, in their Texas STD Surveillance Report 2015, that chlamydia is the most commonly reported bacterial STI in the U.S., Texas, and Travis County, and is most common among youth. For the overall population, A/TC HHSD reports that rates of chlamydia diagnoses are higher for females and people identifying as Black. A/TC HHSD also reports that, for the total population, Travis County experiences higher rates of gonorrhea and syphilis diagnoses than the state as a whole, as well. In 2012, 74% of cases of gonorrhea were among people ages 15 to 29, according the A/TC HHSD.

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