Doug H. CheungSin How LimThomas E. GuadamuzStuart KoeChongyi WeiUCSF Center for AIDS Prevention StudiesHarvard School of Public HealthUniversity of MalayaUniversity of Pittsburgh Graduate School of Public HealthMahidol UniversityICM Pharma Pte LtdUniversity of California, San Francisco2018-11-092018-11-092014-01-01Archives of Sexual Behavior. Vol.44, No.2 (2014), 389-397000400022-s2.0-84939893851https://repository.li.mahidol.ac.th/handle/20.500.14594/33193© 2014, Springer Science+Business Media New York. We postulated that the growing popularity of circuit parties may play a role in the escalating HIV prevalence among men who have sex with men (MSM) in Asia. The present study is the first to characterize the sociodemographic and HIV-related behavioral factors of circuit party attendees living in Asia. We analyzed a subset of data from the Asia Internet MSM Sex Survey conducted from January 1 to February 28, 2010. Inclusion criteria included: being biologically male, aged 18 years or above, self-reported sex with another man, and reported international travel in the past 6 months (N = 6,094). From our multivariable logistic regression model, participants’ resident country with low HIV prevalence (among MSM) (AOR 1.59, 95 % CI 1.27–2.00) and country of destination with high HIV prevalence were independently associated with higher odds of circuit party attendance (AOR 1.32, 95 % CI 1.14–1.53) during international travel. Statistical interaction indicated circuit party attendees were likely to have traveled from low HIV prevalence (among MSM) countries to high HIV prevalence countries (AOR 1.40, 95 % CI 1.20–1.64). Other independent correlates included unprotected anal sex with a male casual sex partner and recreational drug use during travel. HIV and STI prevention focusing on circuit party attendees may have a pivotal role on the spread of the HIV epidemics among MSM in Asia.Mahidol UniversityArts and HumanitiesPsychologyArticleSCOPUS10.1007/s10508-014-0339-6