The impact of friends on young adults' drinking over the course of the evening--an event-level analysis

Addiction
Johannes Thrul, Emmanuel Kuntsche

Abstract

To examine whether young adults' alcohol consumption during the course of an evening was affected by the number of friends present, and the interaction between participants' gender and number of friends present. Participants used the internet-based cellphone-optimized assessment technique (ICAT) to complete a series of cellphone questionnaires every Thursday, Friday and Saturday evening over five weekends. A multi-level growth curve model (hourly assessments, clustered within evenings, clustered within individuals) with time-invariant and time-varying covariates was estimated. French-speaking Switzerland. A total of 183 young adults (53.0% female, mean age = 23.1) who completed 7205 questionnaires on 1441 evenings. Alcohol consumption and number of friends present assessed at 8 p.m., 9 p.m., 10 p.m., 11 p.m. and midnight. Drinking pace accelerated notably over the course of the evening on Saturdays (b = 0.047; P < 0.01). Men consumed more alcohol than women, particularly at the beginning of the evening (b = 0.152; P < 0.05). However, this effect was no longer significant when the impact of friends was accounted for (b = 0.096; P = 0.139). The higher the number of friends present, the higher the number of drinks consumed at a gi...Continue Reading

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Citations

Mar 22, 2016·Alcoholism, Clinical and Experimental Research·Helle Larsen, Reinout W Wiers
May 12, 2016·Prevention Science : the Official Journal of the Society for Prevention Research·Johannes Thrul, Emmanuel Kuntsche
Nov 15, 2017·Alcohol and Alcoholism : International Journal of the Medical Council on Alcoholism·Rebecca L MonkDerek Heim
Oct 3, 2017·Alcoholism, Clinical and Experimental Research·Florian LabhartEmmanuel Kuntsche
Nov 6, 2018·Substance Use & Misuse·Kathleen L EganMark Wolfson
Mar 16, 2019·International Journal of Environmental Research and Public Health·Carmen TaberneroEsther Cuadrado
Jun 18, 2020·Alcohol and Alcoholism : International Journal of the Medical Council on Alcoholism·Michelle MacCalmanKristen G Anderson
Oct 18, 2020·Alcoholism, Clinical and Experimental Research·Laura J Finan, Sharon Lipperman-Kreda
Jan 20, 2021·Drug and Alcohol Dependence·Samuel F AcuffJustin C Strickland
Apr 29, 2021·Alcoholism, Clinical and Experimental Research·Jennifer E MerrillKate B Carey
Jun 12, 2021·The Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine·Sina KianersiMolly Rosenberg

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