This daily diary study expands knowledge of the pharmacological alcohol-sleep relationship using a multilevel modeling approach. The interplay between alcohol and sleep on hangover susceptibility is also explored. College students (n = 337; 52 % female) provided 2976 days of self-reported alcohol use.
View Article and Find Full Text PDFResearch on real-world patterns of substance use increasingly involves intensive longitudinal data (ILD) collection, requiring long assessment windows. The present study extends limited prior research examining event- and person-level influences on compliance and response consistency by investigating how these behaviors are sustained over time in an ILD study of alcohol and cannabis co-use in college students. Participants ( = 316) completed two 28-day bursts of ILD comprising five daily surveys, which included a morning survey of prior-day drinking.
View Article and Find Full Text PDFObjective: Simultaneous alcohol and cannabis use (i.e., marijuana, [SAM], using alcohol and cannabis so effects overlap) is associated with increased consumption and consequences compared to single-substance use.
View Article and Find Full Text PDFObjective: Cannabis use is increasing among college students and commonly co-occurs with anxiety symptoms in this age group. Interventions that reduce anxiety may also reduce cannabis use. Behavioral economic theory suggests that substance use reductions are most likely when there is an increase in substance-free reinforcement.
View Article and Find Full Text PDFCannabis
November 2023
This study characterized how quantities of cannabis and alcohol use affect sleep. Single-day and typical cannabis and alcohol use patterns were considered to assess acute-chronic use interactions. Linear and non-linear associations assessed dose-dependence.
View Article and Find Full Text PDFBackground: Young adults frequently use alcohol, cannabis, and tobacco together. Given the increased prevalence of e-cigarette use and recreational cannabis use, we investigated daily patterns of alcohol, cannabis, and tobacco use and distinguished combustible tobacco from e-cigarettes.
Methods: Young adult college students (N=341) reporting past-month alcohol and cannabis use "at the same time so that their effects overlapped" completed two 28-day bursts of repeated daily surveys.
Brief motivational intervention (BMI) and personalized feedback intervention (PFI) are individual-focused brief alcohol intervention approaches that have been proven efficacious for reducing alcohol use among college students and young adults. Although the efficacy of these two intervention approaches has been well established, little is known about the factors that may modify their effects on alcohol outcomes. In particular, high school drinking may be a risk factor for continued and heightened use of alcohol in college, and thus may influence the outcomes of BMI and PFI.
View Article and Find Full Text PDFPurpose: This study examined levels of substance-specific risk factors such as perception of harm from substance use among young adults in a range of cannabis-permissive environments. The main objective was to inform future preventive interventions aimed at reducing cannabis use in the context of increasingly permissive environments.
Methods: Data came from the Community Youth Development Study (CYDS) collected in 2016 when participants were about 23 years old ( = 1,722 participants residing in 46 U.
Background: The impact of alcohol and cannabis co-use on college student drinking and related outcomes is complex. Specific characteristics or patterns of co-use events beyond drinking quantity may be important to the experience of consequences. The present study used repeated daily surveys to examine the association between co-use (versus use of alcohol only) and drinking rate on negative consequences.
View Article and Find Full Text PDFObjective: Simultaneous use of alcohol and marijuana (SAM) is common among U.S. college students, but little research has examined specific substance use behaviors during SAM use episodes.
View Article and Find Full Text PDFObjective: Simultaneous alcohol and cannabis use is common among college students and associated with more consumption and consequences compared to single-substance use. This study examined occasions of simultaneous use and compared planned occasions to unplanned occasions with respect to motives, contexts, consumption, and consequences.
Method: College student simultaneous users ( = 341; 53% women; 74% White) completed five daily surveys for 54 days.
J Stud Alcohol Drugs
January 2022
Objective: College campuses closed in March 2020 because of the COVID-19 pandemic, disrupting the lives of students. The goal of the present study was to examine whether cannabis use changed from before campus departures prompted by COVID-19 to after campus departures and after the semester ended--and if living situation explained observed changes. We also examined changes in specific formulations of cannabis and self-reported reasons for perceived changes in use frequency.
View Article and Find Full Text PDFBackground: The reasons for college students to abstain from alcohol and cannabis use on a given day can inform efforts to prevent or intervene in those behaviors. Research on reasons for alcohol nonuse remains in its nascent stages and no study to date has examined reasons for cannabis nonuse on a given day. Here we examine reasons for nonuse among college students after they planned to use alcohol and/or cannabis.
View Article and Find Full Text PDFObjective: Alcohol and cannabis use as well as their simultaneous use are common among U.S. college students.
View Article and Find Full Text PDFNonmedical use of prescription stimulants (NPS) continues to be a concern on college campuses. Previous research demonstrates a strong link between NPS and use of other substances, particularly alcohol and marijuana among college students. Simultaneous use of NPS with other substances has become an increasing concern.
View Article and Find Full Text PDFObjective: Given the adverse outcomes associated with simultaneous alcohol and marijuana (SAM) use, understanding factors that give rise to occasions of simultaneous use is critical. This study examines the relationships between situational motives and contexts and three situational outcomes: simultaneous alcohol and marijuana use (SAM) use versus cannabis-only use, number of cannabis uses, and subjective effects.
Method: Past-month SAM users ( = 341; 52% female; 75% White; 10% Latinx/Hispanic; age 18-24) from three U.
COVID-19 is a global pandemic that has resulted in widespread negative outcomes. Face masks and social distancing have been used to minimize its spread. Understanding who will engage in protective behaviors is crucial for continued response to the pandemic.
View Article and Find Full Text PDFObjective: Problematic alcohol use among college students remains a public health concern; thus, there is a need to understand distinct drinking events, such as unplanned and planned drinking. The present study examined motives and social and physical contexts as correlates of unplanned and planned drinking to help inform prevention and intervention.
Method: College student alcohol and cannabis users ( = 341; 53% women) completed 56 days of data collection (two 28-day bursts) with five repeated daily surveys.
Simultaneous alcohol and cannabis (i.e., marijuana [SAM]) use is highly prevalent among young adults and college students and associated with a number of negative consequences compared to single substance use.
View Article and Find Full Text PDFBackground: In spring 2020, U.S. universities closed campuses to limit the transmission of COVID-19, resulting in an abrupt change in residence, reductions in social interaction, and in many cases, movement away from a heavy drinking culture.
View Article and Find Full Text PDFSimultaneous alcohol and marijuana (SAM) use is common, but it exacerbates negative consequences. Individuals use alcohol and cannabis products in different ways and have distinct reasons for use. The present study examines day-level effects of motives on consequences on SAM-use days, accounting for consumption, and tests whether using multiple alcohol (e.
View Article and Find Full Text PDFWe examined tobacco use changes in young adult college students in the context of the COVID-19 pandemic, focusing on smoking and vaping. First, we evaluated changes in tobacco use from pre to post campus closure focusing on smoking and electronic nicotine vaping frequency (days) and quantity (cigarettes/cartridges per day). Also, given the potential protective effects of pausing (temporarily or permanently discontinuing) smoking or vaping, we evaluated its predictors.
View Article and Find Full Text PDFObjective: It is well established that college students increase their drinking when they leave home. This study examined changes in drinking as a result of campus closure due to coronavirus disease 2019 (COVID-19), focusing on the influence of living situation.
Method: A sample of 312 college students (mean age = 21.
Background: Alcohol and marijuana/cannabis are frequently used simultaneously (i.e., SAM use).
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