Studying the mechanism of behavior change of a web-based brief intervention for college drinkers through mediation and moderation analyses

• Grant number: 18/12729-9
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: January 14, 2019
• End date: December 13, 2019
• Field of knowledge: Interdisciplinary Subjects
• Principal Investigator: Maria Lucia Oliveira de Souza Formigoni
• Grantee: André Bedendo de Souza
• Supervisor: Jim Mccambridge
• Host Institution: Escola Paulista de Medicina (EPM). Universidade Federal de São Paulo (UNIFESP). Campus São Paulo. São Paulo , SP, Brazil
• Institution abroad: University of York, England
• Associated to the scholarship: 17/13831-9 - Analysis of mediators and moderators of an internet-based intervention for alcohol use among college students, BP.PD

Abstract

Background: Alcohol use among college students causes health and social problems. However, even when available, many students do not access alcohol interventions. Web-based Personalized Normative Feedback (PNF) has been used to disseminate alcohol brief-interventions, and evidence supports PNF efficacy in reducing alcohol consumption among this population. On the other hand, studies on PNF mediators and moderators are scarce, limiting the knowledge on the mechanisms of change and conditions in which their effects occur. Objective: to evaluate whether normative perceptions mediate, and motivation to receive the intervention, moderates the effects of a web-based PNF intervention (Pesquisa Universitária sobre Bebidas - PUB 2.0) for alcohol use among Brazilian college students. Methods: Pragmatic randomized controlled trial among college students aged 18 and over and with follow-up assessments after 3 and 6 months. Participants will be randomized into a Control group (assessment only) or to receive the updated version of the intervention (PUB 2.0). Outcomes are the typical number of drinks (primary outcome) and the total number of drinks consumed, drinking frequency, maximum number of drinks consumed and number of consequences (secondary outcomes). Statistical analyses will consider Structural Equation Models and significance level of 5%. This study will improve knowledge on how and in which conditions a web-based alcohol PNF effects occur, helping tailor future strategies to reduce the impact of alcohol problems among college students.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BEDENDO, ANDRE; MCCAMBRIDGE, JIM; GAUME, JACQUES; SOUZA, ALTAY A. L.; FORMIGONI, MARIA LUCIA O. S.; NOTO, ANA R.. Components evaluation of a web-based personalized normative feedback intervention for alcohol use among college students: a pragmatic randomized controlled trial with a dismantling design. ADDICTION, v. 115, n. 6, JAN 2020. (18/12729-9, 13/20341-7, 15/19472-5, 17/13831-9)

NADKARNI, ABHIJIT; BHATIA, URVITA; BEDENDO, ANDRE; DE PAULA, TASSIANE CRISTINE SANTOS; DE ANDRADE TOSTES, JOANNA GONCALVES; SEGURA-GARCIA, LIDIA; TIBURCIO, MARCELA; ANDREASSON, SVEN. Brief interventions for alcohol use disorders in low- and middle-income countries: barriers and potential solutions. INTERNATIONAL JOURNAL OF MENTAL HEALTH SYSTEMS, v. 16, n. 1, p. 14-pg., 2022-08-08. (18/12729-9, 17/13831-9)

MARCELLA FERREIRA GONÇALVES; ANDRÉ BEDENDO; ANDRÉ LUIZ MONEZI ANDRADE; ANA REGINA NOTO. Fatores associados à adesão a uma intervenção via web sobre o uso de álcool entre universitários. Estudos de Psicologia (Campinas), v. 38, 2020-08-28. (15/19472-5, 18/12729-9, 13/20341-7, 17/13831-9)