The effectiveness of a web-based intervention for Japanese adults with problem drinking: An online randomized controlled trial.

Autor:	Hamamura T; National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, Tokyo, Japan.; Japan Society for the Promotion of Science, Tokyo, Japan., Suganuma S; Department of Humanities, National Defense Academy, Kanagawa, Japan., Takano A; Department of Mental Health and Psychiatric Nursing, Tokyo Medical and Dental University, Tokyo, Japan., Matsumoto T; Department of Drug Dependence Research, National Center of Neurology and Psychiatry, Tokyo, Japan., Shimoyama H; Department of Integrated Educational Sciences, University of Tokyo, Tokyo, Japan.
Jazyk:	angličtina
Zdroj:	Addictive behaviors reports [Addict Behav Rep] 2021 Dec 14; Vol. 15, pp. 100400. Date of Electronic Publication: 2021 Dec 14 (Print Publication: 2022).
DOI:	10.1016/j.abrep.2021.100400
Abstrakt:	Aims: This study aimed (1) to delineate how a web-based intervention affects the problem drinking behaviors of Japanese adults and (2) to examine the moderating effects of disorder levels and alcohol outcome expectancies on intervention outcomes. Methods: We implemented an online two-armed parallel-group randomized controlled trial with 546 Japanese adults. Adults aged 20 years or older and who scored eight or higher on the Alcohol Use Disorder Identification Test were included in this study. Participants were randomly allocated to the intervention group or the waitlist/control group. The intervention comprised assessment of drinking behavior, personalized normative feedback, psychoeducation about the consequences of problem drinking, and a short quiz. The outcomes were weekly drinking quantity and abstinent days, largest drinking quantity in one day, and alcohol-related consequences reported at baseline and at one-, two-, and six-month follow-ups. A mixed-effects model regression was conducted to compare the intervention and control groups. Results: The attrition rates at each follow-up were 52.93%, 49.45%, and 32.60%, respectively. The time × condition interaction effect on weekly drinking quantity was significant at the two- and six-month follow-ups, d = 0.28, 95% CI [0.04, 0.51], d = 0.34, 95% CI [0.05, 0.63], respectively. Moderations related to the intervention effect were not statistically significant. Conclusion: A web-based intervention was found to be effective for two and six months only on drinking quantity measures of Japanese adults with problem drinking. Limitations including high drop-out rates in are discussed. Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: This research was supported in part by grants from the Graduate Program for Social ICT Global Creative Leaders at the University of Tokyo. Toshitaka Hamamura reports personal fees from KDDI Research Inc. outside the submitted work. (© 2021 The Authors.)
Databáze:	MEDLINE
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