Using GIS Identified boundaries to target a STD intervention for teens: Riverside County, California

STD rates among teens are a major Public Health concern. Over 17,000 cases of chlamydia were reported in Riverside County, CA over the past 4 years, with approximately 32% in teens. Untreated gonorrhea and chlamydia can lead to serious health complications, such as PID. Sexually active teens are also at risk for becoming pregnant, with significant teen birth rates occurring in Riverside County. A Geographic Information System (GIS) was used to identify areas where ‘teen-specific' program interventions may be most warranted. Maps were generated by plotting incident cases of chlamydia and gonorrhea in county residents 15 to 17 years of age. Density calculations were used to identify areas of high STD incidence, while teen birth data was incorporated to test the hypothesis that areas of high STD incidence coincide with areas of high teen birth rate. Though no clear correlation was observed, the information provides evidence that multiple strategies for addressing the issues may be needed. The data was shared with a wide range of community partners to increase awareness of STDs in youth. A Youth Activist Lounge was formed to develop a Youth STD message. Future directions include evaluating primary versus secondary prevention programs with input from teens and young adults; and sponsoring community forums with school officials and other key community leaders. STD program staff will also increase collaboration with HIV/AIDS and family planning program staff to develop joint interventions targeting teens and young adults.