Young adults' trajectories of Ecstasy use: A population based study

Smirnov, Andrew, Najman, Jake M., Hayatbakhsh, Reza, Plotnikova, Maria, Wells, Helene, Legosz, Margot and Kemp, Robert (2013) Young adults' trajectories of Ecstasy use: A population based study. Addictive Behaviors, 38 11: 2667-2674. doi:10.1016/j.addbeh.2013.06.018

Author Smirnov, Andrew
Najman, Jake M.
Hayatbakhsh, Reza
Plotnikova, Maria
Wells, Helene
Legosz, Margot
Kemp, Robert
Title Young adults' trajectories of Ecstasy use: A population based study
Journal name Addictive Behaviors   Check publisher's open access policy
ISSN 0306-4603
Publication date 2013-11-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.addbeh.2013.06.018
Open Access Status Not yet assessed
Volume 38
Issue 11
Start page 2667
End page 2674
Total pages 8
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Subject 2701 Medicine (miscellaneous)
3203 Clinical Psychology
3005 Toxicology
2738 Psychiatry and Mental health
Abstract Young 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.
Keyword Drug use trajectories
Early adulthood
Social environment
Maturational factors
Drug dependence
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID LP0776879
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Public Health Publications
School of Social Science Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 10 Nov 2013, 10:36:05 EST by System User on behalf of School of Public Health