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Are changes in alcohol consumption among swedish youth really occurring 'in concert'?: A new perspective using quantile regression
Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.ORCID iD: 0000-0003-2733-4441
Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.
2017 (English)In: Alcohol and Alcoholism, ISSN 0735-0414, E-ISSN 1464-3502, Vol. 52, no 4, p. 487-495Article in journal (Refereed) Published
Abstract [en]

Aims: Recent studies of youth alcohol consumption indicate a collective downward drinking trend at all levels of consumption, i.e. reductions occurring 'in concert'. We re-examine the collectivity of drinking theory by applying quantile regression methods to the analysis and interpretation of Swedish youth alcohol consumption.

Method: Changes in youth alcohol consumption between 2000 and 2014 were assessed using a school-based survey conducted in Stockholm (n = 86,402). Participants were Swedish youth aged 15-18 years. The rate of change in consumption was examined using quantile regression, and compared to Ordinary Least Squares modelling. The hypothesis of parallelism or 'in concert' changes in consumption was assessed using the test of the equality of linear regression slopes corresponding to different quantiles of log consumption.

Results: In both models, changes in consumption over time did not occur in parallel, contrary to the collectivity of drinking theory. Instead, a clear divergence in the rate of drinking was observed, with most adolescent quantiles reducing consumption, while heavy consuming remained stable.

Conclusions: Contrary to previous studies, our findings do not support a collectivity of drinking behaviour among Swedish youth. Quantile regression is a robust and appropriate method for analysing temporal changes in alcohol consumption data.

Place, publisher, year, edition, pages
Oxford University Press, 2017. Vol. 52, no 4, p. 487-495
Keywords [en]
adolescent, adult, alcohol consumption, Article, drinking behavior, female, human, human experiment, juvenile, least square analysis, linear regression analysis, male, priority journal, regression analysis, Swedish citizen, adolescent behavior, comparative study, epidemiology, psychological theory, Sweden, trends, underage drinking, Humans, Least-Squares Analysis
National Category
Substance Abuse
Identifiers
URN: urn:nbn:se:hj:diva-39963DOI: 10.1093/alcalc/agx020ISI: 000404607500013PubMedID: 28379324Scopus ID: 2-s2.0-85021724048OAI: oai:DiVA.org:hj-39963DiVA, id: diva2:1214986
Available from: 2018-06-07 Created: 2018-06-07 Last updated: 2018-06-07Bibliographically approved

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