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dc.contributor.authorSmirnov, Andrew
dc.contributor.authorNajman, Jake M.
dc.contributor.authorHayatbakhsh, Reza
dc.contributor.authorPlotnikova, Maria
dc.contributor.authorWells, Helene
dc.contributor.authorLegosz, Margot
dc.contributor.authorKemp, Robert
dc.date.accessioned2017-05-03T11:21:19Z
dc.date.available2017-05-03T11:21:19Z
dc.date.issued2013
dc.identifier.issn03064603
dc.identifier.doi10.1016/j.addbeh.2013.06.018
dc.identifier.urihttp://hdl.handle.net/10072/64125
dc.description.abstractYoung adults' Ecstasy use trajectories have important implications for individual and population-level consequences of Ecstasy use, but little relevant research has been conducted. This study prospectively examines Ecstasy trajectories in a population-based sample. Data are from the Natural History Study of Drug Use, a retrospective/prospective cohort study conducted in Australia. Population screening identified a probability sample of Ecstasy users aged 19-23 years. Complete data for 30 months of follow-up, comprising 4 time intervals, were available for 297 participants (88.4% of sample). Trajectories were derived using cluster analysis based on recent Ecstasy use at each interval. Trajectory predictors were examined using a generalized ordered logit model and included Ecstasy dependence (World Mental Health Composite International Diagnostic Instrument), psychological distress (Hospital Anxiety Depression Scale), aggression (Young Adult Self Report) and contextual factors (e.g. attendance at electronic/dance music events). Three Ecstasy trajectories were identified (low, intermediate and high use). At its peak, the high-use trajectory involved 1-2 days Ecstasy use per week. Decreasing frequency of use was observed for intermediate and high-use trajectories from 12 months, independently of market factors. Intermediate and high-use trajectory membership was predicted by past Ecstasy consumption (> 70 pills) and attendance at electronic/dance music events. High-use trajectory members were unlikely to have used Ecstasy for more than 3 years and tended to report consistently positive subjective effects at baseline. Given the social context and temporal course of Ecstasy use, Ecstasy trajectories might be better understood in terms of instrumental rather than addictive drug use patterns.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom2667
dc.relation.ispartofpageto2674
dc.relation.ispartofissue11
dc.relation.ispartofjournalAddictive Behaviors
dc.relation.ispartofvolume38
dc.rights.retentionY
dc.subject.fieldofresearchCauses and Prevention of Crime
dc.subject.fieldofresearchPublic Health and Health Services
dc.subject.fieldofresearchPsychology
dc.subject.fieldofresearchcode160201
dc.subject.fieldofresearchcode1117
dc.subject.fieldofresearchcode1701
dc.titleYoung adults' trajectories of Ecstasy use: A population based study
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWells, Helene A.


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