Group Sex Events and HIV/STI Risk in an Urban Network.

The article presents a study on the risk factors of group sex events (GSEs) in acquiring sexually transmitted infection (STI) and HIV in Brooklyn, New York. The study aims to describe the prevalence of HIV and STI among GSEs and GSE attendees. It also describes the characteristics of individual and network of GSEs and GSE attendees through the respondents sera and urine samples. The study concluded that self-reported GSE attendance and participation were usual among the high-risk urban network.