Trajectories of parental and peer supply of alcohol in adolescence and associations with later alcohol consumption and harms: A prospective cohort study

Alexandra Aiken; Gary Chan; Wing See Yuen; Philip J Clare; Delyse Hutchinson; Nyanda McBride; Jackob M Najman; Jim McCambridge; Emily Upton; Tim Slade; Veronica C Boland; Clara De Torres; Raimondo Bruno; Kypros Kypri; Monika Wadolowski; Richard P Mattick; Amy Peacock

doi:10.1016/j.drugalcdep.2022.109533

Trajectories of parental and peer supply of alcohol in adolescence and associations with later alcohol consumption and harms: A prospective cohort study

Drug Alcohol Depend. 2022 Aug 1:237:109533. doi: 10.1016/j.drugalcdep.2022.109533. Epub 2022 Jun 11.

Authors

Alexandra Aiken¹, Gary Chan², Wing See Yuen³, Philip J Clare⁴, Delyse Hutchinson⁵, Nyanda McBride⁶, Jackob M Najman⁷, Jim McCambridge⁸, Emily Upton³, Tim Slade⁹, Veronica C Boland³, Clara De Torres³, Raimondo Bruno¹⁰, Kypros Kypri¹¹, Monika Wadolowski¹², Richard P Mattick³, Amy Peacock¹⁰

Affiliations

¹ National Drug & Alcohol Research Centre, UNSW Sydney, NSW 2052, Australia. Electronic address: a.aiken@unsw.edu.au.
² National Centre For Youth Substance Use Research, The University of Queensland, St Lucia, QLD 4067, Australia.
³ National Drug & Alcohol Research Centre, UNSW Sydney, NSW 2052, Australia.
⁴ National Drug & Alcohol Research Centre, UNSW Sydney, NSW 2052, Australia; Prevention Research Collaboration, The Charles Perkins Centre, The University of Sydney, Camperdown, NSW 2006, Australia.
⁵ National Drug & Alcohol Research Centre, UNSW Sydney, NSW 2052, Australia; Centre for Social and Early Emotional Development, School of Psychology, Faculty of Health, Deakin University, Geelong, VIC 3220, Australia; Department of Paediatrics, The University of Melbourne, Parkville, VIC 3010, Australia; Murdoch Children's Research Institute, Royal Children's Hospital, The University of Melbourne, Parkville, VIC 3052, Australia.
⁶ National Drug Research Institute, Curtin University, Perth, WA 6845, Australia.
⁷ Queensland Alcohol and Drug Research and Education Centre, University of Queensland, Brisbane, QLD 4072, Australia.
⁸ Department of Health Sciences, Seebohm Rowntree Building, University of York, Heslington, York YO10 5DD, United Kingdom.
⁹ Sydney Medical School / The Matilda Centre, The University of Sydney, Camperdown, NSW 2006, Australia.
¹⁰ National Drug & Alcohol Research Centre, UNSW Sydney, NSW 2052, Australia; School of Psychology, University of Tasmania, Hobart, TAS 7000, Australia.
¹¹ Centre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW 2308, Australia.
¹² Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW 2109, Australia.

PMID: 35752023
DOI: 10.1016/j.drugalcdep.2022.109533

Abstract

Background: Supply of alcohol to adolescents is associated with increased alcohol consumption and harms including alcohol use disorder (AUD). We aimed to identify: (1) trajectories of alcohol supply to adolescents; (2) sociodemographic characteristics associated with supply trajectory; (3) patterns of alcohol consumption by supply trajectory; and (4) supply trajectory associations with adverse alcohol outcomes.

Methods: We used Australian longitudinal survey data (N = 1813) to model latent trajectories of parent and peer alcohol supply over five annual follow-ups (Waves 2-6; M_age 13.9-17.8 years). Regression models assessed associations between supply trajectories and Wave 1 (M_age=12.9 years) sociodemographic factors and associations between supply trajectories and Wave 7 (M_age=18.8 years) alcohol outcomes.

Results: We identified five alcohol supply classes: (1) minimal supply (n = 739, 40.8%); (2) early parent sips, late peer/parent whole drinks (n = 254, 14.0%); (3) late peer/parent whole drinks (n = 419, 23.1%); (4) early parent sips, mid peer/parent whole drinks (n = 293, 16.2%); (5) early peer/parent whole drinks (n = 108, 6.0%). Compared to minimal supply, the other classes were 2.7-12.9 times as likely to binge drink, 1.6-3.0 times as likely to experience alcohol-related harms, and 2.1-8.6 times as likely to report AUD symptoms at age 19.

Conclusion: Earlier supply of whole drinks, particularly from peers, was associated with increased risk of early adulthood adverse alcohol outcomes. While minimal supply represented the lowest risk, supplying sips only in early-mid adolescence and delaying supply of whole drinks until late adolescence is likely to be less risky than earlier supply of whole drinks.

Trial registration: ClinicalTrials.gov NCT02280551.

Keywords: Alcohol supply, parental supply, latent class analysis, adolescents; Alcohol use disorder; Cohort studies.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adolescent
Adult
Alcohol Drinking / epidemiology
Alcoholism*
Australia / epidemiology
Humans
Longitudinal Studies
Parents
Prospective Studies
Underage Drinking*
Young Adult

Associated data

ClinicalTrials.gov/NCT02280551