ABSTRACT
This study identifies patterns of simultaneous polysubstance use (SPU) in partygoers, their associated characteristics, and their differences in terms of acute effects experienced. We used a web-based survey with 1345 partygoers who reported using at least one substance during the past year, collecting information on drug use and drug-related acute effects experienced at the last party attended. Latent class analysis identified three SPU profiles according to the use of nine substances: low polysubstance use (67.7%), moderate polysubstance use/hallucinogens (11.6%), and extensive polysubstance use/stimulants (20.7%). These profiles differed in their sociodemographic characteristics and were associated with different odds of experiencing adverse drug-related effects. Compared with participants with a profile of low polysubstance use or moderate polysubstance use/hallucinogens, those in the extensive polysubstance use/stimulants group were at higher odds of experiencing memory impairment, tachycardia, and bad mood after drug use. The only differences between the low polysubstance use and moderate polysubstance use/hallucinogens groups were in terms of hangover and headache experiences, which were less likely in the latter group (who consume less alcohol). Knowledge regarding the acute adverse drug-related effects experienced by partygoers who use multiple drugs can help to develop interventions for reducing drug-related risks in this population.
Acknowledgments
The authors would like to thank all participants who completed the survey for their time and efforts, and harm reduction organizations that disseminated the study “Party and Drugs Research Project”.
Disclosure statement
The authors report no conflict of interest.