The Available Pool of Sex Partners and Risk for a Current Bacterial Sexually Transmitted Infection

摘要: Purpose Sexually transmitted infection (STI) transmission models propose that incident STIs are related to exposure infected sex partners. The objective of this study was determine whether the prevalence among available pool partners in a neighborhood, measured indirectly, is an independent determinant current STI. Methods target population comprised 58,299 English-speaking, sexually active 15- 24-year-olds 486 census block groups (CBGs) Baltimore, MD. A sample 65 CBGs selected using stratified, systematic, probability-proportional-to-size strategy and 13,873 households were randomly selected. From 2004 through 2007, research assistants administered audio computer-assisted interview survey collected biologic samples for gonorrhea chlamydia testing. Results final size included 575 participants from 63 CBGs. Additional data provided 2005 per 49-year-old persons 100,000 CBG. After adjustment individual-level STI risk factors multilevel probability model, adolescents young adults living high (vs. low) areas 4.73 times (95% confidence interval [CI]: 3.65–6.15) more likely have Conclusions To inform prevention programs, future should focus on identifying mechanisms which context causes changes local sexual networks their prevalence.