Australian Parental Supply of Alcohol Longitudinal Study (APSALS)

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Date Commenced:
09/2010
Expected Date of Completion:
12/2022
Project Supporters:

Australian Research Council - Discovery Project Australian Rotary Health Mental Health Research Grant Australian Rotary Health Whitcroft Family PhD Scholarship Foundation for Alcohol Research & Education Australian Federal Government Australian Postgraduate Award 2018-2022
National Health and Medical Research Council Project Grant 2018-2022

Drug Type:
Project Members: 
image - Richard Mattick
Honorary Visiting Professor
Ph 02 9385 0333
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Senior Research Officer
Ph 02 9385 0111
image - Amy Peacock 2016 Square 280
Senior Research Fellow (UNSW)
Ph +61 (2) 9385 0333
image - 1354252817 Philip Clare Square
Biostatistician/PhD Candidate
Ph 02 9385 0333
image - Wing See Yuen
Research Assistant
Ph +61 (2) 8936 1352
image - VB NDARC 2016 Photo 1
Postdoctoral Fellow
Ph 02 9385 0333
Project Main Description: 

Parents can positively influence their children's alcohol use. One strategy they use is to provide their children with alcohol, believing it is the best way to teach their children how to drink responsibly. The impact of parental supply is not well understood and may be unintentionally harmful. This study will research the consequences of parental supply within the broader context of parent, child and peer relationships. It will help to determine how parental supply influences the different patterns of adolescent alcohol consumption over time, providing essential information to help parents prevent alcohol misuse in their children. Parents can play a pivotal role in prevention of alcohol misuse, but at present we don't know exactly how.

Project Collaborators: External: 

Professor Jakob Najman
Queensland Alcohol & Drug Research and Education Centre, University of Queensland

Associate Professor Kypros Kypri
School of Medicine and Public Health, University of Newcastle

Dr Nyanda McBride
National Drug Research Institute, Curtin University

Associate Professor Raimondo Bruno
School of Psychology, University of Tasmania

Dr Delyse Hutchinson
School of Psychology, Deakin University

Associate Professor John Horwood
University of Otago, New Zealand

Professor Jim McCambridge
University of York, UK

Associate Professor Tim Slade
The Matilda Centre, University of Sydney

Dr Monika Wadolowski
School of Women's & Children's Health, University of New South Wales

Rationale: 

Binge drinking among adolescents is currently being touted as a recent epidemic, but it is a long-standing problem which needs to be addressed. Australian parents are prepared to make a significant contribution; they believe that it is their role to teach their children when, where and how to drink. The impact of parental supply is not well understood. This study will research the consequences of parental supply within the broader context of parent, child and peer relationships. It will help to determine how parental supply influences the different patterns of adolescent alcohol consumption over time, providing essential information to help parents prevent alcohol misuse in their children. Parents can play a pivotal role in prevention of alcohol misuse, but at present we don’t know exactly how.

Aims: 

This study is investigating the impact of parental supply of alcohol on drinking trajectories in Australian adolescents, including how parental supply of alcohol relates to the acceleration or deceleration of harmful drinking trajectories, and how other related factors may mediate and moderate the relationship. 

Design and Method: 

Using a longitudinal design, 1,977 families were recruited from Grade 7 classes across schools in NSW, TAS and WA with 1927 eligible families agreeing to participate. Families have thus far been followed up annually since 2010. Surveys address areas related to quantity and frequency of alcohol consumption (including supply, supervision and context of supply and consumption), parental modelling of alcohol use, family and peer relationships, family history of alcohol-related problems, alcohol-specific rules and access, and child mental health and behavioural problems. Latent growth curve modelling will be used to analyse the longitudinal data.

Progress/Update: 

At the end of 2018, 73% of the sample completed Wave 8 surveys, with the 9th wave currently underway and expected to be completed by late 2019. Response rates for waves 1-7 were >75%. Analyses have been presented at several national and international conferences and several peer-reviewed publications have been published. Further analyses are ongoing with a range of papers being drafted for other peer-review publications. The National Health and Medical Research Council is funding the project from 2018-2022, allowing us to continue following our families until participants are aged approximately 23-24 years old.  This has established our cohort as an international landmark study, allowing us to answer the important question of how parental supply of alcohol in early adolescence impacts upon alcohol use and harms late adolescence and early adulthood.

Output: 

Papers:

Mattick, R.P., Clare, P.J., Aiken, A., Wadolowski, M., Hutchinson, D., Najman, J., Slade, T., Bruno, R., McBride, N., Kypri, K., Vogl, L., Degenhardt, L. (2018). Association of parental supply of alcohol with adolescent drinking, alcohol-related harms, and alcohol use disorder symptoms: a prospective cohort study. Lancet Public Health, 3(2), e64-e71. doi: 10.1016/S2468-2667(17)30240-2

Mattick, R.P., Wadolowski, M., Aiken, A., Clare, P.J., Hutchinson, D., Najman, J., Slade, T., Bruno, R., McBride, N., Degenhardt, L., Kypri, K. (2017). Parental supply of alcohol and alcohol consumption in adolescence: prospective cohort study. Psychological Medicine, 47(2), 267-78. doi: 10.1017/S0033291716002373

Aiken, A., Wadolowski, M., Bruno, R., Najman, J., Kypri, K., Slade, T., Hutchinson, D., McBride, N., Mattick, R.P. (2017). Cohort Profile: The Australian Parental Supply of Alcohol Longitudinal Study (APSALS). International Journal of Epidemiology, 46(2), e6. doi: 10.1093/ije/dyv051

Wadolowski, M., Hutchinson, D., Bruno, R., Aiken, A., Najman, J.M., Kypri, K., Slade, T., McBride, N., Mattick, R.P. (2016). Parents Who Supply Sips of Alcohol in Early Adolescence: A Prospective Study of Risk Factors. Pediatrics, 137(3), e20152611. doi: 10.1542/peds.2015-2611

Wadolowski, M., Hutchinson, D., Bruno, R., Aiken, A., Clare, P., & Slade, T. et al. (2015). Early Adolescent Alcohol Use: Are Sipping and Drinking Distinct? Alcoholism: Clinical and Experimental Research, 39(9), 1805-1813. doi: 10.1111/acer.12826

Wadolowski, M., Bruno, R., Aiken, A., Stone, C., Najman, J., & Kypri, K. et al. (2015). Sipping, Drinking, and Early Adolescent Alcohol Consumption: A Cautionary Note. Alcoholism: Clinical and Experimental Research, 39(2), 350-354. doi: 10.1111/acer.12613

Presentations:

Clare, P.J., Peacock, A., Boland, V., Yuen, W.S., Aiken, A., Wadolowski, M., Hutchinson, D., Najman, J., Slade, T., Bruno, R., McBride, N., Kypri, K., Vogl, L., Degenhardt, L., Mattick, R.P. (2018). Parental alcohol supply, other supply, and harm: A prospective cohort study. Paper presented at the National Drug and Alcohol Research Symposium, Sydney, 2018.

Mattick, R.P., Clare, P.J., Aiken, A., Wadolowski, M., Hutchinson, D., Najman, J., Slade, T., Bruno, R., McBride, N., Kypri, K., Vogl, L., Degenhardt, L. (2017). Parental supply of alcohol and adolescent drinking, harms, and alcohol use disorder symptoms: Prospective cohort study. Paper presented at the National Drug and Alcohol Research Symposium, Sydney, 2017.

Technical Reports: 

Yuen, W.S., Peacock, A., Clare, P.J., Aiken, A., Degenhardt, L., Boland, V., Dixon, T., Kypri, K., Horwood, J., Bruno, R., McCambridge, J., Wadolowski, M., Najman, J., Hutchinson, D., Slade, T., McBride, N., Mattick, R.P. (2018). A protocol for the extension of the Australian Parental Supply of Alcohol Longitudinal Study (APSALS) (Technical Report No. 340). Retrieved from National Drug and Alcohol Research Centre.

Project Research Area: 
Drug Type: 
Project Status: 
Current