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Ruleman AM, Clendennen SL, Chen B, Harrell MB. Reasons for multiple tobacco product and cannabis co-use among Texas young adults. Addict Behav 2024; 156:108063. [PMID: 38824720 DOI: 10.1016/j.addbeh.2024.108063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 06/04/2024]
Abstract
OBJECTIVE This study examines differences in reasons for e-cigarette, cigarette, and cannabis use across exclusive, dual, co-, and poly co-users. METHODS Participants were 645 young adults who reported past 30-day (P30D) use of e-cigarettes, cigarettes, or cannabis at wave 14 (Fall, 2021) of the Texas Adolescent Tobacco Marketing and Surveillance System (TATAMS). Exclusive users reported P30D use of one product, dual users reported P30D use of e-cigarettes and cigarettes, co-users reported use of cannabis and one tobacco product, and poly co-users reported P30D use of all three products. Participants were asked if they agreed with a series of reasons for using their respective products. Multinomial logistic regression analyses were conducted to examine associations between reasons for use and pattern of use, controlling for sex, race/ethnicity, and lifetime product use. RESULTS 26.36 % of P30D users reported cannabis and tobacco use. Poly co-users were more likely to report using e-cigarettes because their friends do than e-cigarette co-users (aRRR = 2.64; 95 %CI = 1.19-5.83) and dual tobacco users (aRRR = 5.11; 95 %CI = 1.73-15.12). Poly co-users were more likely to smoke cigarettes while drinking alcohol (aRRR = 4.68; 95 %CI = 1.06-20.72) or to experience a pleasurable buzz (aRRR = 5.48; 95 %CI = 1.62-18.57) than exclusive cigarette users. Poly co-users more often reported using cannabis for taste (aRRR = 3.13; 95 %CI = 1.51-6.51), because their friends use it (aRRR = 2.19; 95 %CI = 1.08-4.42), and while drinking alcohol (aRRR = 2.13; 95 %CI = 1.03-4.41) than exclusive cannabis users. CONCLUSIONS Given that reasons for use differ significantly among types of multiple product users and exclusive users, interventions should be tailored to address the specific tobacco and cannabis use practices of young adults.
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Affiliation(s)
- Ashlynn M Ruleman
- University of Texas Health Science Center, School of Public Health, 1836 San Jacinto Blvd, Austin, TX 78701, USA.
| | - Stephanie L Clendennen
- University of Texas Health Science Center, School of Public Health, 1836 San Jacinto Blvd, Austin, TX 78701, USA
| | - Baojiang Chen
- University of Texas Health Science Center, School of Public Health, 1836 San Jacinto Blvd, Austin, TX 78701, USA
| | - Melissa B Harrell
- University of Texas Health Science Center, School of Public Health, 1836 San Jacinto Blvd, Austin, TX 78701, USA
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2
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Acuff SF, Oddo LE, Johansen AN, Strickland JC. Contextual and psychosocial factors influencing drug reward in humans: The importance of non-drug reinforcement. Pharmacol Biochem Behav 2024; 241:173802. [PMID: 38866372 DOI: 10.1016/j.pbb.2024.173802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/29/2024] [Accepted: 06/01/2024] [Indexed: 06/14/2024]
Abstract
The reinforcing efficacy, or behavior-strengthening effect, of a substance is a critical determinant of substance use typically quantified by measuring behavioral allocation to the substance under schedules of reinforcement with escalating response requirements. Although responses on these tasks are often used to indicate stable reinforcing effects or trait-level abuse potential for an individual, task designs often demonstrate within-person variability across varying degrees of a constraint within experimental procedures. As a result, quantifying behavioral allocation is an effective approach for measuring the impact of contextual and psychosocial factors on substance reward. We review studies using laboratory self-administration, behavioral economic purchase tasks, and ambulatory assessments to quantify the impact of various contextual and psychosocial factors on behavioral allocation toward consumption of a substance. We selected these assessment approaches because they cover the translational spectrum from experimental control to ecological relevance, with consistent support across these approaches representing greater confidence in the effect. Conceptually, we organized factors that influence substance value into two broad categories: factors that influence the cost/benefit ratio of the substance (social context, stress and affect, cue exposure), and factors that influence the cost/benefit ratio of an alternative (alternative non-drug reinforcers, alternative drug reinforcers, and opportunity costs). We conclude with an overview of future research directions and considerations for clinical application.
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Affiliation(s)
- Samuel F Acuff
- Recovery Research Institute, Massachusetts General Hospital and Harvard Medical School, 151 Merrimac Street, Boston, MA 02114, USA.
| | - Lauren E Oddo
- Department of Psychology, Virginia Commonwealth University, 806 West Franklin Street, Richmond, VA 23284-2018, USA
| | | | - Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA
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McQuoid J, Regan T, Devkota J, Cheney MK, Kumar V, Oehlers J, Lopez-Paguyo K, Nguyen N, Meacham MC, Ling PM, Thrul J. Situations and roles of cannabis versus cigarette use: Integrating ecological momentary assessment with qualitative mapping interviews. Health Place 2024; 89:103314. [PMID: 39032204 DOI: 10.1016/j.healthplace.2024.103314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/24/2024] [Accepted: 07/04/2024] [Indexed: 07/22/2024]
Abstract
Use of both cannabis and tobacco has surpassed use of tobacco alone among young adults in California. To better understand why, we collected data with 32 young adults ages 18-30 in Northern California who regularly used cigarettes and cannabis and had diverse sexual, gender, racial, and ethnic identities. Geographically-explicit ecological momentary assessment (EMA; 30 days) was integrated with qualitative mapping interviews. We found contrasting situations of use for cannabis (e.g., around other people) versus cigarettes (e.g., recent discrimination) and different reasons for why participants chose one substance over the other (e.g., enhancing experiences vs. stepping away). Understanding when and why diverse young adults choose cannabis versus cigarettes as they navigate everyday environments helps explain how cannabis and tobacco retail markets shape substance use disparities over time.
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Affiliation(s)
- Julia McQuoid
- TSET Health Promotion Research Center, Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Timothy Regan
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Janardan Devkota
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Marshall K Cheney
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Vaishnavi Kumar
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Julia Oehlers
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA; John A. Burns School of Medicine, University of Hawai'i, Honolulu, HI, USA
| | - Kekoa Lopez-Paguyo
- Center for Tobacco Control Research and Education, University of California, San Francisco, CA, USA
| | - Nhung Nguyen
- Center for Tobacco Control Research and Education, University of California, San Francisco, CA, USA; Division of General Internal Medicine, Department of Medicine, University of California, San Francisco, CA, USA
| | - Meredith C Meacham
- Department of Psychiatry & Behavioral Sciences, University of California, San Francisco, CA, USA
| | - Pamela M Ling
- Center for Tobacco Control Research and Education, University of California, San Francisco, CA, USA; Division of General Internal Medicine, Department of Medicine, University of California, San Francisco, CA, USA
| | - Johannes Thrul
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA; Centre for Alcohol Policy Research, La Trobe University, Melbourne, Australia.
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Zaharakis N, Coatsworth JD, Riggs NR, Radford A, Rayburn S, Mennis J, Russell MA, Brown A, Mason MJ. Treating young adult cannabis use disorder with text message-delivered peer network counseling. Contemp Clin Trials 2024; 144:107635. [PMID: 39019156 DOI: 10.1016/j.cct.2024.107635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/28/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
BACKGROUND Approximately 16.5% of U.S. young adults have a cannabis use disorder (CUD) and are at risk for negative outcomes. Treatment can reduce cannabis use, but young adults are less likely to seek help than older adults. Peer Network Counseling-txt (PNC-txt) is a brief, text-delivered, Motivational Interviewing-informed substance use intervention focusing on peer relations and activity spaces as mechanisms for behavioral change. PNC-txt has shown evidence of reducing tobacco and cannabis use with adolescents and young adults, but it has not been tested in the context of legal cannabis use. The current randomized controlled trial sought to expand the evidence regarding the context of PNC-txt effects, comparing one state in which cannabis is legal (Colorado) and one state in which it is not (Tennessee). We hypothesized that participants randomized to PNC-txt would show significant reductions in cannabis use compared to controls, with larger reductions for females and those in Colorado, and that peer relations and activity space would mediate effects. METHODS One thousand, seventy eight 18-25 year olds (CO: 551; TN: 527) who met screening criteria for CUD and biologically-verified cannabis use were randomly assigned to PNC-txt or waitlist control condition. Every other day for 4 weeks, participants assigned to PNC-txt received pre-programmed text conversations, tailored via data from the baseline assessment. Self-report and biological indicators of cannabis use were measured at 1-, 3-, and 6-months. DISCUSSION Data analysis is underway. Results will provide evidence regarding whether, and how, PNC-txt reduces cannabis use in young adults with CUD. TRIAL REGISTRATION This trial was prospectively registered on September 28, 2020 with ClinicalTrials.gov (NCT04567394).
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Affiliation(s)
- Nikola Zaharakis
- Center for Behavioral Health Research, University of Tennessee Knoxville, 600 Henley St, Suite 221, Knoxville, TN 37996, United States.
| | - J Douglas Coatsworth
- Center for Behavioral Health Research, University of Tennessee Knoxville, 600 Henley St, Suite 221, Knoxville, TN 37996, United States
| | - Nathaniel R Riggs
- Prevention Research Center, Colorado State University, 1570 Campus Delivery, Fort Collins, CO 80523, United States
| | - Aubrie Radford
- Prevention Research Center, Colorado State University, 1570 Campus Delivery, Fort Collins, CO 80523, United States
| | - Stephanie Rayburn
- Prevention Research Center, Colorado State University, 1570 Campus Delivery, Fort Collins, CO 80523, United States
| | - Jeremy Mennis
- Temple University, 328 Gladfelter Hall, Philadelphia, PA 19122, United States
| | - Michael A Russell
- The Pennsylvania State University, 107 BBH Building, University Park, PA 16802, United States
| | - Aaron Brown
- University of Kentucky, Patterson Office Tower #1825, Lexington, KY 40506, United States
| | - Michael J Mason
- Center for Behavioral Health Research, University of Tennessee Knoxville, 600 Henley St, Suite 221, Knoxville, TN 37996, United States
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Assaf RD, Hamad R, Javanbakht M, Arah OA, Shoptaw SJ, Cooper ZD, Gorbach PM. Associations of U.S. state-level COVID-19 policies intensity with cannabis sharing behaviors in 2020. Harm Reduct J 2024; 21:82. [PMID: 38622670 PMCID: PMC11020667 DOI: 10.1186/s12954-024-00987-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 03/16/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND Cannabis use before the COVID-19 pandemic for many involved sharing prepared cannabis for inhalation, practices that were less prevalent during the pandemic. State-level COVID-19 containment policies may have influenced this decrease. This study examined the extent to which the intensity of state-level COVID-19 policies were associated with individual-level cannabis sharing. Findings have the potential to guide harm reduction policies for future respiratory pandemics and seasonal respiratory virus waves. METHODS This study used cross-sectional individual-level data from the COVID-19 Cannabis Study, an anonymous U.S.-based web survey on cannabis use disseminated during the early phase of the pandemic (Full sample N = 1,883). We combined individual-level data with state-level policy data from Kaiser Family Foundation's State COVID-19 Data and Policy Actions for three time-points from June to August 2020 that overlapped with the survey period. Cannabis sharing was dichotomized as any versus no sharing. We adapted a previously published coding framework to score the intensity of COVID-19 policies implemented in each U.S. state and averaged the policy score across the time period. We then used Poisson regression models to quantify the associations of the average state-level COVID-19 policy score with cannabis sharing during the pandemic. RESULTS Participants (n = 925) reporting using inhalation as a mode for cannabis use were included in this analysis. Most respondents were male (64.1%), non-Hispanic White (54.3%), with a mean age of 33.7 years (SD 8.8). A large proportion (74.9%) reported sharing cannabis during the pandemic. Those who shared cannabis more commonly lived in states with a lower average policy score (16.7, IQR 12.3-21.5) compared to those who did not share (18.6, IQR 15.3-25.3). In adjusted models, the prevalence ratio of any cannabis sharing per every 5-unit increase in the average COVID-19 policy score was 0.97 (95% CI 0.93, 1.01). CONCLUSIONS Fewer individuals shared cannabis in states with more intense COVID-19 containment policies compared to those in states with less intense policies. Individuals who use cannabis may be willing to make changes to their behavior and may further benefit from specific and directed public health messaging to avoid sharing during respiratory infection outbreaks.
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Affiliation(s)
- Ryan D Assaf
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA.
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA.
- Department of Medicine, Benioff Homelessness and Housing Initiative, Center for Vulnerable Populations, University of California, San Francisco, CA, USA.
| | - Rita Hamad
- Department of Medicine, Benioff Homelessness and Housing Initiative, Center for Vulnerable Populations, University of California, San Francisco, CA, USA
- Department of Social and Behavioral Sciences, Harvard School of Public Health, Boston, MA, USA
| | - Marjan Javanbakht
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Onyebuchi A Arah
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Department of Statistics, University of California, Los Angeles, CA, USA
| | - Steven J Shoptaw
- Center for Behavioral and Addiction Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Family Medicine and Psychiatry and Behavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Ziva D Cooper
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
- Department of Anesthesiology and Perioperative Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Pamina M Gorbach
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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6
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Wedel AV, Park A. Solitary Cannabis Use and Related Consequences Among College Students During the COVID-19 Pandemic. J Psychoactive Drugs 2024; 56:168-176. [PMID: 36857296 PMCID: PMC10471781 DOI: 10.1080/02791072.2023.2184735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 01/18/2023] [Accepted: 01/30/2023] [Indexed: 03/02/2023]
Abstract
Solitary cannabis use has been associated with greater cannabis problems than social use and may be increasingly prevalent due to pandemic-related isolation. However, little is known about patterns, correlates, and consequences of solitary cannabis use. This study sought to characterize solitary cannabis use since pandemic onset, examine psychosocial risk factors, and examine interactions between solitary and social cannabis use frequency on cannabis consequences. College students (N = 168) who were lifetime cannabis users at a private, northeastern university in the US completed an online cross-sectional survey in fall of 2020. Past-year solitary cannabis use was common among life-time cannabis users (42% past year, 29% monthly or more), especially among past-year regular cannabis users (85% monthly or more). Solitary use frequency was associated with interpersonal sensitivity and pandemic-related stress. Further, solitary use attenuated associations of social use frequency with cannabis consequences, such that social use frequency was associated with greater consequences only among exclusively social users. In contrast, regardless of social use frequency, solitary users reported greater cannabis consequences than exclusively social users. Findings suggest solitary cannabis use is concurrently associated with greater cannabis consequences, and affective risk factors (interpersonal sensitivity, pandemic stress) should be considered for prevention and intervention strategies.
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Affiliation(s)
- Amelia V. Wedel
- Department of Psychology, Syracuse University, Syracuse, New York, United States
| | - Aesoon Park
- Department of Psychology, Syracuse University, Syracuse, New York, United States
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Sun Y, Kargarandehkordi A, Slade C, Jaiswal A, Busch G, Guerrero A, Phillips KT, Washington P. Personalized Deep Learning for Substance Use in Hawaii: Protocol for a Passive Sensing and Ecological Momentary Assessment Study. JMIR Res Protoc 2024; 13:e46493. [PMID: 38324375 PMCID: PMC10882478 DOI: 10.2196/46493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/08/2023] [Accepted: 12/11/2023] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND Artificial intelligence (AI)-powered digital therapies that detect methamphetamine cravings via consumer devices have the potential to reduce health care disparities by providing remote and accessible care solutions to communities with limited care solutions, such as Native Hawaiian, Filipino, and Pacific Islander communities. However, Native Hawaiian, Filipino, and Pacific Islander communities are understudied with respect to digital therapeutics and AI health sensing despite using technology at the same rates as other racial groups. OBJECTIVE In this study, we aimed to understand the feasibility of continuous remote digital monitoring and ecological momentary assessments in Native Hawaiian, Filipino, and Pacific Islander communities in Hawaii by curating a novel data set of longitudinal Fitbit (Fitbit Inc) biosignals with the corresponding craving and substance use labels. We also aimed to develop personalized AI models that predict methamphetamine craving events in real time using wearable sensor data. METHODS We will develop personalized AI and machine learning models for methamphetamine use and craving prediction in 40 individuals from Native Hawaiian, Filipino, and Pacific Islander communities by curating a novel data set of real-time Fitbit biosensor readings and the corresponding participant annotations (ie, raw self-reported substance use data) of their methamphetamine use and cravings. In the process of collecting this data set, we will gain insights into cultural and other human factors that can challenge the proper acquisition of precise annotations. With the resulting data set, we will use self-supervised learning AI approaches, which are a new family of machine learning methods that allows a neural network to be trained without labels by being optimized to make predictions about the data. The inputs to the proposed AI models are Fitbit biosensor readings, and the outputs are predictions of methamphetamine use or craving. This paradigm is gaining increased attention in AI for health care. RESULTS To date, more than 40 individuals have expressed interest in participating in the study, and we have successfully recruited our first 5 participants with minimal logistical challenges and proper compliance. Several logistical challenges that the research team has encountered so far and the related implications are discussed. CONCLUSIONS We expect to develop models that significantly outperform traditional supervised methods by finetuning according to the data of a participant. Such methods will enable AI solutions that work with the limited data available from Native Hawaiian, Filipino, and Pacific Islander populations and that are inherently unbiased owing to their personalized nature. Such models can support future AI-powered digital therapeutics for substance abuse. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/46493.
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Affiliation(s)
- Yinan Sun
- Department of Information and Computer Sciences, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Ali Kargarandehkordi
- Department of Information and Computer Sciences, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Christopher Slade
- Department of Information and Computer Sciences, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Aditi Jaiswal
- Department of Information and Computer Sciences, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Gerald Busch
- Department of Psychiatry, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Anthony Guerrero
- Department of Psychiatry, University of Hawaii at Manoa, Honolulu, HI, United States
| | - Kristina T Phillips
- Center for Integrated Health Care Research, Kaiser Permanente Hawaii, Honolulu, HI, United States
| | - Peter Washington
- Department of Information and Computer Sciences, University of Hawaii at Manoa, Honolulu, HI, United States
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Kreitzberg DS, Pasch KE, Loukas A. Longitudinal patterns of cannabis and tobacco co-administration and concurrent use among young adult college students. Addict Behav 2024; 148:107871. [PMID: 37778233 PMCID: PMC11247418 DOI: 10.1016/j.addbeh.2023.107871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 09/19/2023] [Accepted: 09/24/2023] [Indexed: 10/03/2023]
Abstract
INTRODUCTION Co-use, including concurrent use or co-administration, of cannabis and tobacco is most prevalent in young adulthood and associated with worse health outcomes than use of either substance alone. This study examined latent classes of tobacco and cannabis concurrent use and co-administration, and transitions between classes from 2016 to 2019, among a sample of young adult college students in Texas. METHODS Participants included 4,448 young adults (64.2% female, 64.7% non-white, mean age = 20.5) in a longitudinal cohort study. Measures included past 30-day use of cigarettes. hookah, cigars, ENDS, cannabis, and cannabis and tobacco co-administration. Latent Markov models were used to estimate latent class membership and transitions between classes from 2016 to 2017 and 2017 to 2019. RESULTS Four latent classes emerged: non-use (58% of students) characterized by low/no probability of any use; general use (19%) characterized by some level of use of all behaviors; blunt and cannabis use class (13%) characterized by high probabilities of cannabis use and co-administration with blunts; and concurrent and co-administration use (10%) with high probabilities of cigarette, cannabis, blunt, and spliff use. Most students remained in the same latent class from 2016 to 2019. CONCLUSIONS While most students reported low/no tobacco and cannabis co-use, those who used cannabis and/or tobacco remained in their use classes over the course of the study (2016 to 2019). Public health advocates on college campuses should consider prevention and cessation programs that incorporate the constellation of behaviors related to cannabis and tobacco co-use and educate students about the health consequences of co-use.
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Affiliation(s)
- Daniel S Kreitzberg
- Department of Kinesiology and Health Education, The University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX 78712, USA
| | - Keryn E Pasch
- Department of Kinesiology and Health Education, The University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX 78712, USA.
| | - Alexandra Loukas
- Department of Kinesiology and Health Education, The University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX 78712, USA
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Gray BA, Bolts OL, Fitzke RE, Douglass MA, Pedersen ER, Prince MA. Using Latent Profile Analysis to Examine Cannabis Use Contexts: Associations with Use, Consequences, and Protective Behaviors. Subst Use Misuse 2023; 59:208-217. [PMID: 37846065 DOI: 10.1080/10826084.2023.2267112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
OBJECTIVE College students represent a large portion of the population, and report high rates of cannabis use and related negative outcomes, including interpersonal problems, risky behaviors, or physical dependency. The contexts in which students use cannabis (e.g., at a party, when feeling down or depressed, after a fight with a loved one) likely affect their risk of experiencing consequences. We aimed to discern profiles of cannabis use contexts and compare profiles on use frequency, consequences, and the use of cannabis protective behavioral strategies (PBS). METHOD College students were surveyed regarding their cannabis use contexts, frequency, consequences, and PBS use (n = 265; female = 72.8%). We used Latent Profile Analysis to identify patterns of cannabis use contexts and auxiliary testing to compare profiles on use frequency, consequences, and PBS use. RESULTS Our examination revealed three latent profiles of cannabis use. The Social Use Profile was associated with use in predominantly social/uplifting contexts. The Physical & Emotional Pain Profile was also associated with use in these contexts but was defined by additional use in response to pain. The All Contexts Profile was associated with frequent use in all contexts, including those that were least endorsed by the other profiles. Profiles differed in cannabis use frequency, PBS use, and the number of consequences experienced, such that profiles were more likely to be associated with more frequent cannabis use, higher risk of experiencing use-consequences, and using fewer PBS as the number of use contexts increased across the profiles. CONCLUSIONS The contexts in which people use cannabis are associated with cannabis risk and protection. Prevention and intervention efforts may benefit from considering contexts of cannabis use.
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Affiliation(s)
- Bethany A Gray
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Olivia L Bolts
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Reagan E Fitzke
- Department of Psychiatry and Behavioral Sciences, University of Southern California; Keck School of Medicine, Los Angeles, California, USA
| | - Morgan A Douglass
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Eric R Pedersen
- Department of Psychiatry and Behavioral Sciences, University of Southern California; Keck School of Medicine, Los Angeles, California, USA
| | - Mark A Prince
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
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10
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Yu CY, Shang Y, Hough TM, Bokshan AL, Fleming MN, Haney AM, Trull TJ. Predicting quantity of cannabis smoked in daily life: An exploratory study using machine learning. Drug Alcohol Depend 2023; 252:110964. [PMID: 37748423 PMCID: PMC10615868 DOI: 10.1016/j.drugalcdep.2023.110964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/02/2023] [Accepted: 09/10/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Cannabis use is prevalent in the United States and is associated with a host of negative consequences. Importantly, a robust indicator of negative consequences is the amount of cannabis consumed. METHODS Data were obtained from fifty-two adult, regular cannabis flower users (3+ times per week) recruited from the community; participants completed multiple ecological momentary assessment (EMA) surveys each day for 14 days. In this exploratory study, we used various machine learning algorithms to build models to predict the amount of cannabis smoked since participants' last report including forty-three EMA measures of mood, impulsivity, pain, alcohol use, cigarette use, craving, cannabis potency, cannabis use motivation, subjective effects of cannabis, social context, and location in daily life. RESULTS Our best-fitting model (Gradient Boosted Trees; 71.15% accuracy, 72.46% precision) found that affects, subjective effects of cannabis, and cannabis use motives were among the best predictors of cannabis use amount in daily life. The social context of being with others, and particularly with a partner or friend, was moderately weighted in the final prediction model, but contextual items reflecting location were not strongly weighted in the final prediction model, the one exception being not at work. CONCLUSIONS Machine learning approaches can help identify additional environmental and psychological phenomena that may be clinically-relevant to cannabis use.
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Affiliation(s)
- Ching-Yun Yu
- Department of Electrical Engineering and Computer Science, University of Missouri, USA.
| | - Yi Shang
- Department of Electrical Engineering and Computer Science, University of Missouri, USA
| | - Tionna M Hough
- Department of Psychological Sciences, University of Missouri, USA
| | | | - Megan N Fleming
- Department of Psychological Sciences, University of Missouri, USA
| | - Alison M Haney
- Department of Psychological Sciences, University of Missouri, USA
| | - Timothy J Trull
- Department of Psychological Sciences, University of Missouri, USA.
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Assaf RD, Javanbakht M, Gorbach PM, Cooper ZD. Cannabis Use and Sharing Practices Among Sexual Minority and Heterosexual Individuals During the COVID-19 Pandemic. LGBT Health 2023; 10:514-525. [PMID: 37252794 PMCID: PMC10552144 DOI: 10.1089/lgbt.2022.0236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
Purpose: Cannabis behaviors during the COVID-19 pandemic among sexual minority (SM) individuals in the United States remain understudied. This study assessed the prevalence and correlates of cannabis use and cannabis sharing, a potential risk for COVID-19 transmission, among SM and heterosexual-identified individuals in the United States during the COVID-19 pandemic. Methods: This cross-sectional study used data from an anonymous, US-based web survey on cannabis-related behaviors from August to September 2020. Included participants reported past-year nonmedical cannabis use. Associations between frequency of cannabis use and sharing behaviors by sexual orientation were evaluated using logistic regression analysis. Results: Overall, 1112 respondents reported past-year cannabis use; mean age 33 years (standard deviation = 9.4), 66% male identified (n = 723), and 31% SM identified adults (n = 340). Increased cannabis use during the pandemic was similar among SM (24.7%; n = 84) and heterosexual (24.9%; n = 187) respondents. Any sharing during the pandemic was 81% for SM adults (n = 237) and 73% for heterosexual adults (n = 486). In the fully adjusted models, the odds of daily/weekly cannabis use and the odds of any cannabis sharing among SM respondents were 0.56 (95% confidence interval [CI] = 0.42-0.74) and 1.60 (95% CI = 1.13-2.26), respectively, compared with heterosexual respondents. Conclusions: SM respondents were less likely to use cannabis with high frequency during the pandemic but more likely to share cannabis compared with heterosexual respondents. Sharing cannabis was high overall, which may increase COVID-19 risk. Public health messaging around sharing may be important during COVID-19 surges and respiratory pandemics especially as cannabis becomes more widely available in the United States.
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Affiliation(s)
- Ryan D. Assaf
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA
| | - Marjan Javanbakht
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA
| | - Pamina M. Gorbach
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA
- Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Ziva D. Cooper
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
- Department of Anesthesiology and Perioperative Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
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12
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Assaf RD, Hamad R, Javanbakht M, Arah OA, Shoptaw SJ, Cooper ZD, Gorbach PM. Associations of U.S. state-level COVID-19 policies intensity with cannabis sharing behaviors in 2020. RESEARCH SQUARE 2023:rs.3.rs-3211086. [PMID: 37577641 PMCID: PMC10418562 DOI: 10.21203/rs.3.rs-3211086/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Background Cannabis use before the COVID-19 pandemic for many involved sharing prepared cannabis for inhalation, practices that were less prevalent during the pandemic. State-level COVID-19 containment policies may have influenced this decrease. This study examined the extent to which the intensity of state-level COVID-19 policies were associated with individual-level cannabis sharing. Findings have the potential to guide harm reduction policies for future respiratory pandemics and seasonal respiratory virus waves. Methods This study used cross-sectional individual-level data from the COVID-19 Cannabis Study, an anonymous U.S.-based web survey on cannabis use disseminated during the early phase of the pandemic (Full sample N = 1,883). We combined individual-level data with state-level policy data from Kaiser Family Foundation's State COVID-19 Data and Policy Actions for three time-points from June to August 2020 that overlapped with the survey period. Cannabis sharing was dichotomized as any versus no sharing. We adapted a previously published coding framework to score the intensity of COVID-19 policies implemented in each U.S. state and averaged the policy score across the time period. We then used logistic regression models to quantify the associations of the average state-level COVID-19 policy score with cannabis sharing during the pandemic. Results Participants (n = 975) reporting using inhalation as a mode for cannabis use were included in this analysis. Most respondents were male (64.1%), non-Hispanic White (54.3%), with a mean age of 33.7 years (SD 8.8). A large proportion (75.1%) reported sharing cannabis during the pandemic. Those who shared cannabis more commonly lived in states with a lower average policy score (15.3, IQR 11.3-19.0) compared to those who did not share (16.3, IQR 13.7-22.7). In adjusted models, the odds of any cannabis sharing per every 5-unit increase in the average COVID-19 policy score were 0.78 (95% CI 0.58, 1.04). Conclusions Fewer individuals shared cannabis in states with more intense COVID-19 containment policies compared to those in states with less intense policies. Individuals who use cannabis may be willing to make changes to their behavior and may further benefit from specific and directed public health messaging to avoid sharing during respiratory infection outbreaks.
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Affiliation(s)
- Ryan D Assaf
- Benioff Homelessness and Housing Initiative, Center for Vulnerable Populations, Department of Medicine, University of California, San Francisco
| | - Rita Hamad
- Social Policies for Health Equity Research (SPHERE) Program, Department of Social and Behavioral Sciences, Harvard School of Public Health
| | - Marjan Javanbakht
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles
| | - Onyebuchi A Arah
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles
| | - Steven J Shoptaw
- Family Medicine and Psychiatry and Behavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles
| | - Ziva D Cooper
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles
| | - Pamina M Gorbach
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles
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13
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Ruppe NM, Clawson AH, Nwankwo CN, Traino KA, Bakula DM, Sharkey CM, Mullins LL. Depressive Symptoms, Cannabis Use, and Transition Readiness among College Students with and without Chronic Medical Conditions. Subst Use Misuse 2023; 58:1350-1359. [PMID: 37331790 DOI: 10.1080/10826084.2023.2223260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Background: College students experience increased responsibility for healthcare transition. They are at increased risk for depressive symptoms and cannabis use (CU), potentially modifiable predictors of successful healthcare transition. This study investigated how depressive symptoms and CU related to transition readiness, and if CU moderated the association between depressive symptoms and transition readiness for college students. Methods: College students (N = 1,826, Mage=19.31, SD = 1.22) completed online measures of depressive symptoms, healthcare transition readiness, and past-year CU. Regression identified 1) the main effects of depressive symptoms and CU on transition readiness and 2) examined if CU moderated the relationship between depressive symptoms and transition readiness with chronic medical conditions (CMC) status as a covariate. Results: Higher depressive symptoms were correlated with past-year CU (r=.17, p<.001) and lower transition readiness (r=-0.16, p<.001). In the regression model, higher depressive symptoms were related to lower transition readiness (ß=-0.02, p<.001); CU was not related to transition readiness (ß=-0.10, p=.12). CU moderated the relationship between depressive symptoms and transition readiness (B=.01, p=.001). The negative relationship between depressive symptoms and transition readiness was stronger for those with no past-year CU (B=-0.02, p<.001) relative to those with a past-year CU (ß=-0.01, p<.001). Finally, having a CMC was related to CU and higher depressive symptoms and transition readiness. Conclusions: Findings highlighted that depressive symptoms may hinder transition readiness, supporting the need for screening and interventions among college students. The finding that the negative association between depressive symptoms and transition readiness was more pronounced among those with past-year CU was counterintuitive. Hypotheses and future directions are provided.
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Affiliation(s)
- Nicole M Ruppe
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
| | - Ashley H Clawson
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
| | - Cara N Nwankwo
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
| | - Katherine A Traino
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
| | - Dana M Bakula
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
| | - Christina M Sharkey
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
| | - Larry L Mullins
- Department of Psychology, Oklahoma State University, Stillwater, OK, USA
- Center for Pediatric Psychology, Oklahoma State University, Stillwater, OK, USA
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14
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Sartor CE, O'Malley SS, Krishnan-Sarin S, Foster DW. In what settings and social contexts do young adults vape or smoke cannabis? Findings from a web-based diary pilot study. Addict Behav 2023; 144:107753. [PMID: 37210830 DOI: 10.1016/j.addbeh.2023.107753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
BACKGROUND Vaping is an increasingly common mode of cannabis use among young adults. Despite potential to inform targeted prevention, settings and social contexts where young adults vape and/or smoke cannabis have rarely been investigated. We addressed this question in a diverse young adult sample. METHODS Data were collected weekly in a web-based daily diary format for six weeks. The analytic sample consisted of the 108 participants (of the 119 enrolled) who used cannabis during the assessment period (mean age = 22.06; 23.78% college students; 65.74% female; 5.56% Asian, 22.22% Black, 16.67% Latinx, 2.78% Multi-racial or Other and 52.77% White). Cannabis use was queried separately for vaping and smoking; respondents reported all settings (14 options) and social contexts (7 options) where they used. RESULTS For both vaping and smoking cannabis, the most common settings were home (vaping: 56.97%, smoking: 68.72% [significantly lower for vaping]), friend's home (vaping: 22.49%, smoking: 21.49%), and car (vaping: 18.80%, smoking: 12.99%). The most common social contexts were with friends (vaping: 55.96%, smoking: 50.61%), with significant other (vaping: 25.19%, smoking: 28.53%), and alone (vaping: 25.92%, smoking: 22.62%). Compared to non-students, college students reported vaping on a significantly higher proportion (27.88% vs. 16.50%) of cannabis use days. CONCLUSIONS Very similar patterns in settings and social contexts were observed for vaping as smoking and in prevalence of vaping and smoking cannabis across demographic groups. The few notable exceptions have implications for vaping related public health measures: targeting reducing vaping outside the home, particularly in cars, and implementing prevention programming on college campuses.
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Affiliation(s)
- Carolyn E Sartor
- Institute for Health, Health Care Policy and Aging Research, Rutgers, The State University of New Jersey, 112 Paterson Street, New Brunswick, NJ 08901, United States.
| | - Stephanie S O'Malley
- Department of Psychiatry, Yale School of Medicine, Connecticut Mental Health Center, 34 Park Street, New Haven, CT 06508, United States
| | - Suchitra Krishnan-Sarin
- Department of Psychiatry, Yale School of Medicine, Connecticut Mental Health Center, 34 Park Street, New Haven, CT 06508, United States
| | - Dawn W Foster
- Department of Psychiatry, Yale School of Medicine, Connecticut Mental Health Center, 34 Park Street, New Haven, CT 06508, United States
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15
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Bolts OL, Prince MA, Noel NE. Latent profiles of cannabis use, protective behavioral strategies, and health beliefs in college students. Addict Behav 2023; 144:107747. [PMID: 37163888 DOI: 10.1016/j.addbeh.2023.107747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/02/2023] [Accepted: 04/29/2023] [Indexed: 05/12/2023]
Abstract
College student cannabis use is prevalent and heterogeneous, with some students experiencing cannabis-related problems. Cannabis protective behavioral strategies (PBS) are cognitive-behavioral strategies associated with reduced cannabis use and problems. There is a need for theory-informed and person-centered research to better understand cannabis PBS. The current study applied the health belief model (HBM) and latent profile analysis to discern patterns of cannabis use, PBS, and health beliefs among college students. Students (n = 164; Mage = 18.8; 53% female) who endorsed past-month cannabis use completed an online survey between September and November 2017. The 3-profile model best fit the data. Profile 1 (24.3%) represents the "infrequent use/high protection" profile characterized by using cannabis about 1-9 times, high PBS use, high perceived threat and benefits, and moderate perceived barriers. Profile 2 (38.1%) represents the "occasional use/moderate protection" profile characterized by using cannabis about 20-59 times, moderate PBS use, moderate perceived threat and benefits, and low perceived barriers. Profile 3 (37.6%) represents the "frequent use/low protection" profile characterized by using cannabis about 80 or more times, low PBS use, low perceived threat and benefits, and high perceived barriers. Profiles did not differ by age, ethnicity/race, sex, or college year, though varied significantly by age at first cannabis use, cannabis availability, cannabis problems, use frequency, and use context. Results provide preliminary support for distinct patterns of cannabis use, PBS, and health beliefs that align with the HBM. Results highlight the importance of considering how students perceive cannabis PBS and problems and how those beliefs may influence their PBS and cannabis use.
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Affiliation(s)
- Olivia L Bolts
- Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO 80523, USA.
| | - Mark A Prince
- Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO 80523, USA.
| | - Nora E Noel
- Department of Psychology, University of North Carolina Wilmington, 601 South College Rd., Wilmington, NC 28409, USA.
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16
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Bolts OL, Prince MA, Noel NE. Expectancies that Predict Cannabis Initiation in Response to Legalization. Subst Use Misuse 2023; 58:939-946. [PMID: 37036094 DOI: 10.1080/10826084.2023.2198596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Background: Recent and prospective changes to nonmedical/recreational cannabis laws in the United States and abroad raise questions about how legalization may influence cannabis use behaviors. Objectives: In the current study, we examined links between legalization, context-specific likelihood of using cannabis, and cannabis expectancies using cross-sectional survey data from 121 college students who had never used or were abstaining from cannabis in a U.S. state where laws prohibit nonmedical cannabis. Results: We found that across scenarios, 61% of students reported they would be more likely to use cannabis if it were legal. Social/sexual facilitation expectancies predicted a higher likelihood of using cannabis after legalization in a social context. Relaxation/tension reduction expectancies predicted a higher likelihood of using in an anxiety relief context. Perceptual/cognitive enhancement expectancies predicted a higher likelihood of using in a pain relief context. Cognitive/behavioral impairment expectancies predicted a lower likelihood of using in social, pain relief, relaxation, and concert contexts. Global negative effects expectancies predicted a lower likelihood of using in relaxation and concert contexts. Conclusions: Our findings suggest that among college students who do not use cannabis, expectancies are linked to cannabis use likelihood in certain contexts if cannabis were legal. This work highlights cannabis expectancies and contexts as possible targets for evidence-based public health education and clinical prevention initiatives related to the potential increase in cannabis use associated with cannabis policy implementation. College students may benefit from initiatives that address cannabis expectancies and enhance harm reduction skills to help them effectively navigate contexts in which cannabis is available to them.
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Affiliation(s)
- Olivia L Bolts
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Mark A Prince
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Nora E Noel
- Department of Psychology, University of North Carolina Wilmington, Wilmington, North Carolina, USA
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17
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Assaf RD, Javanbakht M, Gorbach PM, Arah OA, Shoptaw SJ, Cooper ZD. Puff, Puff, Don't Pass: harm reduction for cannabis use during a viral respiratory pandemic. Harm Reduct J 2023; 20:23. [PMID: 36829150 PMCID: PMC9957690 DOI: 10.1186/s12954-023-00751-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 02/05/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Prior to the COVID-19 pandemic, cannabis use social practices often involved sharing prepared cannabis (joints/blunts/cigarettes) and cannabis-related paraphernalia. Previous studies have demonstrated that sharing paraphernalia for cannabis, tobacco, and crack cocaine is a risk factor for respiratory viral and bacterial infections. Although COVID-19 is a respiratory viral infection that spreads through droplets and airborne transmission, it is unclear if many individuals adopted harm reduction practices around sharing cannabis. This study: quantifies the prevalence of sharing prepared non-medical cannabis and cannabis-related paraphernalia reported before and during the pandemic; assesses changes in sharing of non-medical cannabis from before to during the pandemic; assess the association between frequency of non-medical cannabis use and sharing of cannabis during the pandemic; and describes how respondents obtained their cannabis and the reasons for changing their cannabis use during the pandemic to explain differences in sharing patterns. METHODS This cross-sectional study used data collected from an anonymous, US-based web survey on cannabis-related behaviors from August to September 2020 (n = 1833). Participants were included if they reported using a mode of inhalation for non-medical cannabis consumption. We calculated proportional changes in sharing cannabis before/during the COVID-19 pandemic. Associations between frequency of cannabis use and cannabis sharing during the COVID-19 pandemic were assessed using logistic regression analysis. RESULTS Overall, 1,112 participants reported non-medical cannabis use; 925 (83.2%) reported a mode of cannabis inhalation. More respondents reported no sharing during (24.9%) than before the pandemic (12.4%; p < 0.01); less respondents shared most of the time (19.5% before; 11.2% during; p < 0.01) and always during the pandemic (5.2% before; 3.1% during; p < 0.01). After adjusting for covariates, the odds of any sharing during the pandemic for those who reported ≥ weekly cannabis use was 0.53 (95% CI 0.38, 0.75) compared to those who reported ≤ monthly. CONCLUSIONS Sharing of prepared cannabis and cannabis-related paraphernalia decreased during the COVID-19 pandemic compared to before the pandemic. This finding suggests potential risk mitigation strategies taken by participants for COVID-19 prevention either directly through behavior change or indirectly through adherence to COVID-19 prevention recommendations. Harm reduction messaging around sharing of cannabis during surges of COVID-19 or other respiratory infections may provide benefit in reducing infection among those who use cannabis, especially as cannabis use in the USA continues to increase.
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Affiliation(s)
- Ryan D Assaf
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA.
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA.
| | - Marjan Javanbakht
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Pamina M Gorbach
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
- Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Onyebuchi A Arah
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
- Department of Statistics, UCLA, Los Angeles, CA, USA
| | - Steven J Shoptaw
- Center for Behavioral and Addiction Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Family Medicine and Psychiatry and Behavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Ziva D Cooper
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
- Department of Anesthesiology and Perioperative Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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18
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Denson RK, Hedeker D, Mermelstein RJ. Association between affect and cannabis use varies by social context. Drug Alcohol Depend 2023; 243:109750. [PMID: 36634576 PMCID: PMC9884136 DOI: 10.1016/j.drugalcdep.2022.109750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 11/20/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Cannabis use is rising globally, underscoring the importance of understanding contextual factors related to cannabis use. Although much work has retrospectively examined cannabis use patterns and effects, fewer studies have evaluated cannabis use in natural environments. METHODS The present study used ecological momentary assessment (EMA) to examine the subjective experience of cannabis use (i.e., positive and negative affect) and how cannabis' mood effects are modified by the social context, defined as being alone or with others, in which use occurs. Associations between cannabis' mood effects and cannabis use disorder symptomatology were additionally examined. Participants (N = 200) completed baseline assessments and two 7-day waves of EMA data collection. Mixed-effects models examined between- and within-subject effects for positive and negative affect at cannabis use and nonuse times and interactions between cannabis use and social context. RESULTS Positive affect was elevated at cannabis use times, compared to nonuse times, regardless of social context. The relationship between cannabis use and negative affect was moderated by social context, such that negative affect was elevated at cannabis use times when participants were alone and reduced at cannabis use times when participants were with others. Higher levels of cannabis use disorder symptomatology and cannabis use frequency were both associated with lower negative affect at cannabis use times. CONCLUSIONS These results suggest that elevated positive affect is consistent across cannabis use times regardless of social context, but negative affect may vary more by the presence of others.
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Affiliation(s)
- Rebecca K Denson
- Department of Psychology, University of Illinois at Chicago, USA.
| | - Donald Hedeker
- Department of Public Health Sciences, University of Chicago, USA
| | - Robin J Mermelstein
- Department of Psychology, University of Illinois at Chicago, USA; Institute for Health Research and Policy, University of Illinois at Chicago, USA
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19
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Goldman A, York Cornwell E. Stand by Me: Social Ties and Health in Real-Time. SOCIUS : SOCIOLOGICAL RESEARCH FOR A DYNAMIC WORLD 2023; 9:10.1177/23780231231171112. [PMID: 37822581 PMCID: PMC10566299 DOI: 10.1177/23780231231171112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Sociological research has documented myriad associations between individuals' overall social connectedness and health, but rarely considers the shorter-term dynamics of social life that may underlie these associations. We examine how being with others ("social accompaniment") is associated with momentary experiences of symptoms, drawing smartphone-based ecological momentary assessments (N=12,720) collected from 342 older adults from the Chicago Health and Activity in Real Time study. We find that patterns of social accompaniment are distinct from global measures of social integration such as network size. Older adults who are in the company of a friend or neighbor are significantly less likely to experience momentary fatigue and stress, even after accounting for overall measures of social integration. These results suggest that social accompaniment has unique implications for short-term health outcomes. New theoretical perspectives and empirical analyses are needed to better understand the dynamic nature of everyday social accompaniment and its longer-term implications for well-being.
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Affiliation(s)
- Alyssa Goldman
- Department of Sociology, Boston College, 140 Commonwealth Avenue, 424 McGuinn Hall, Chestnut Hill, MA 02467
| | - Erin York Cornwell
- Department of Sociology, Cornell University, 390 Uris Hall, Ithaca, NY 14853
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20
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González-Ponce BM, Rojas-Tejada AJ, Carmona-Márquez J, Lozano-Rojas ÓM, Díaz-Batanero C, Fernández-Calderón F. Harm Reduction Strategies among University Students Who Use Alcohol and Cannabis, and Related Psychological Variables: A Systematic Review. J Psychoactive Drugs 2022; 54:403-418. [PMID: 35060424 DOI: 10.1080/02791072.2021.2023240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This systematic review identifies the psychological variables associated with the use of harm reduction strategies (HRS) among university students who use alcohol or cannabis. The reviewed studies are categorized according to the psychological variables studied and the different analytic approaches used (direct effects, mediation, and moderation). Among the empirical peer-reviewed studies identified (n = 76), most (94.7%) were cross-sectional studies conducted in the US (90.8%) with samples of alcohol-using university students (86.8%). Five categories were identified: mental health, motives/expectancies, personality, social cognition, and self-efficacy. The most studied constructs were motives, anxiety and depression, impulsivity, and social norms. Most studies conducted mediation or moderation analyses including psychological variables, HRS and alcohol outcomes. Social, enhancement and coping motives, impulsivity, and social norms of alcohol use were associated with lower use of HRS, which, in turn, was associated with a higher number of alcohol/cannabis outcomes. The results of moderation studies consistently suggest that HRS use was more protective for students with poor mental health, high impulsivity, and low self-regulation. The synthesis of evidence provided in this review could be useful for guiding future research and informing the design of interventions aimed at promoting the use of HRS among university students who use alcohol and/or cannabis.
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Affiliation(s)
| | | | - José Carmona-Márquez
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Óscar M Lozano-Rojas
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Carmen Díaz-Batanero
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Fermín Fernández-Calderón
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
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21
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Baer MM, Tull MT, Gratz KL. Substance Use Frequency Relates to Suicidal Ideation Through Perceived Burdensomeness and to Suicide Attempts Through Capability for Suicide. Arch Suicide Res 2022; 26:1520-1540. [PMID: 34529923 DOI: 10.1080/13811118.2021.1931595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Although substance use has been linked to both suicidal ideation and suicide attempts, the factors underlying these relations remain unclear. The Interpersonal-Psychological Theory of Suicide (ITS) provides a framework for understanding how substance use may increase suicide risk. The purpose of the current study was to examine if frequency of substance use is indirectly related to suicidal ideation and suicide attempts through core ITS variables (i.e., burdensomeness, thwarted belongingness, and suicide capability). METHODS An online sample of Mechanical Turk workers (N = 365) completed measures assessing substance use frequency, burdensomeness, thwarted belongingness, suicide capability, suicidal ideation, and suicide attempts. RESULTS After controlling for relevant clinical and demographic covariates, substance use frequency was indirectly related to suicidal ideation through burdensomeness but not thwarted belongingness. Substance use frequency was indirectly related to suicide attempts through suicide capability only. LIMITATIONS The cross-sectional design precludes conclusions about the precise nature and direction of the relations examined. The use of a community sample limits generalizability to more severe substance using samples. CONCLUSIONS Results highlight the relevance of distinct ITS factors in the relation between substance use frequency and both suicidal ideation and suicide attempts. Results may inform specific targets for novel interventions aimed at reducing suicide risk among substance-using individuals.HighlightsSubstance use frequency was indirectly related to SI through burdensomeness.Substance use frequency was not indirectly related to SI through thwarted belongingness.Substance use frequency was indirectly related to SA only through suicide capability.
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Espinosa A, Ruglass LM, Conway FN, Jackson KM, White HR. Motives, Frequency, and Consequences of Cannabis Use Among College Students. JOURNAL OF DRUG ISSUES 2022. [DOI: 10.1177/00220426221093608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We investigated profiles of cannabis use motives among current cannabis-consuming college students. Then we assessed profile differences in demographic characteristics, social contexts of use, regulatory environment, alcohol use, negative affect, negative consequences, and cannabis use. Participants ( N = 1, 213) were from three universities in states with different cannabis legislation. Six profiles emerged: Low Motives, Low to Moderate Enhance, High Enhance, High Enhance & Social + Moderate Expand, High Enhance & Cope, and High Motives. Profiles differed in social contexts of use, sex, alcohol use, negative affect, and regulatory environment. Profiles endorsing high and multiple motives had higher cannabis use and negative consequences, relative to profiles with low or fewer motives. Profiles characterized by high avoidance motives (i.e., coping) had the highest cannabis use and consequences. Interventions targeting types and intensity of motives for cannabis-use may help reduce use and related consequences among college students who use cannabis.
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Affiliation(s)
- Adriana Espinosa
- Department of Psychology, The City College of New York, New York, NY, USA
- Center of Alcohol & Substance Use Studies, Rutgers University, New Brunswick, NJ, USA
| | - Lesia M. Ruglass
- Department of Psychology, The City College of New York, New York, NY, USA
- Center of Alcohol & Substance Use Studies, Rutgers University, New Brunswick, NJ, USA
| | - Fiona N. Conway
- Steve Hicks School of Social Work, The University of Texas at Austin, Austin, TX, USA
| | - Kristina M. Jackson
- Center for Alcohol and Addiction Studies, Brown University School of Public Health, Providence, RI USA
| | - Helene R. White
- Center of Alcohol & Substance Use Studies, Rutgers University, New Brunswick, NJ, USA
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Fernández-Calderón F, Bravo AJ, Díaz-Batanero C, Palamar JJ, Carmona-Márquez J. Alcohol Protective Behavioral Strategies in Young Spanish Adults in the Community: A Prospective Study of Perceived Efficacy and Social Norms. PSICOTHEMA 2022; 34:266-274. [PMID: 35485540 PMCID: PMC9115670 DOI: 10.7334/psicothema2021.413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Protective behavioral strategies (PBS) have been shown to be useful for reducing excessive alcohol use and alcohol-related problems. However, research on the explanatory factors of PBS is limited. This paper prospectively examines the contribution of perceived efficacy of PBS in reducing alcohol-related consequences and perceived descriptive norms of close peers´ PBS use in young adults. The mediating role of perceived efficacy of PBS between descriptive norms of PBS use and personal PBS use is also examined. METHOD Targeted sampling was used to recruit a community-based sample of 339 young Spanish adults aged 18-25 years, who completed baseline and two-month follow-up questionnaires. Three types of PBS (serious harm reduction-SHR, manner of drinking-MOD, and stopping/limiting drinking-SLD) were measured. RESULTS Both perceived efficacy and descriptive norms at baseline were positively associated with personal PBS use (SHR, MOD and SLD) at follow-up. A partial mediation effect of perceived efficacy between descriptive norms and personal PBS use was found for the three PBS subscales. CONCLUSIONS Our findings support the usefulness of correcting misperceptions of PBS use by peers in interventions aimed at reducing excessive drinking and alcohol-related consequences in young adults in the community. Moreover, PBS perceived efficacy should be included as a component of these interventions.
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Affiliation(s)
- Fermín Fernández-Calderón
- University of Huelva, Williamsburg (USA)
- Research Center on Natural Resources, Health and the Environment, Williamsburg (USA)
| | | | - Carmen Díaz-Batanero
- University of Huelva, Williamsburg (USA)
- Research Center on Natural Resources, Health and the Environment, Williamsburg (USA)
| | | | - José Carmona-Márquez
- University of Huelva, Williamsburg (USA)
- Research Center on Natural Resources, Health and the Environment, Williamsburg (USA)
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González-Ponce BM, Carmona-Márquez J, Díaz-Batanero C, Vera BDV, Pilatti A, Fernández-Calderón F. A longitudinal study among young adults into the predictive effect of perceived efficacy of behavioural strategies and the moderating role of drinking motives on use of protective behavioural strategies. Drug Alcohol Rev 2022; 41:795-802. [PMID: 34923689 DOI: 10.1111/dar.13422] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Although protective behavioural strategies (PBS) have shown to be effective in minimising alcohol-related negative consequences, research on the explanatory factors of their use is very scarce. Perceived efficacy has been demonstrated to be one of the most relevant explanatory factors in the use of health-related protective behaviours. The present study prospectively examines the relationship between the perceived efficacy of PBS in reducing alcohol-related negative consequences and the use of PBS in a community-based sample of young adults. In addition, the moderating role of drinking motives in this relationship is also examined. METHODS Prospective design with a baseline assessment and a 2-month follow up. Using a targeted sampling procedure, 339 young adults were recruited from the community [mean age: 21.1 (SD = 2.21); female = 50.7%] and completed questionnaires to measure perceived efficacy of PBS and drinking motives at baseline and PBS use at follow up. RESULTS Perceived efficacy of PBS at baseline was positively associated with PBS use at follow up, and these relationships were weaker as social, enhancement and coping motives scores increased. DISCUSSION AND CONCLUSIONS Our findings support the need to include the perceived efficacy of PBS to reduce alcohol-related negative consequences in future interventions aimed at promoting PBS use. Moreover, these interventions should be personalised according to the initial levels of participants' drinking motives, incorporating elements that allow for neutralising their negative effects on PBS use (e.g. training in coping skills for those with strong coping motives).
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Affiliation(s)
| | - José Carmona-Márquez
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Carmen Díaz-Batanero
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Belén Del Valle Vera
- Faculty of Psychology, National University of Córdoba, Córdoba, Argentina
- Institute of Psychological Research, IIPsi-CONICET-UNC, Córdoba, Argentina
| | - Angelina Pilatti
- Faculty of Psychology, National University of Córdoba, Córdoba, Argentina
- Institute of Psychological Research, IIPsi-CONICET-UNC, Córdoba, Argentina
| | - Fermín Fernández-Calderón
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center on Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
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Layrón Folgado JE, Conchado Peiró A, Marco JH, Barrigón ML, Baca-García E, Pérez Rodríguez S. Trajectory Analysis of Suicidal Ideation in Spanish College Students Using Ecological Momentary Assessment. Front Psychiatry 2022; 13:853464. [PMID: 35432031 PMCID: PMC9008881 DOI: 10.3389/fpsyt.2022.853464] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/14/2022] [Indexed: 12/14/2022] Open
Abstract
Introduction Suicide is a preventable death in young people. It is well known that suicide behavior is a multicausal phenomenon. However, suicidal ideation (SI) commonly underlies suicide, and Ecological Momentary Assessment (EMA) can help us to better characterize it and its risk and protective factors in the short term. We aimed, first, to investigate the estimated prevalence and trajectories of SI in a community sample of Spanish college students using an EMA methodology and, second, explore the associations between risk and protective factors and SI categorized as moderate or low. Materials and Methods A total of 737 participants followed the EMA during a period of 6 months. We estimated the prevalence and trajectories of SI and the associations between depressive symptoms, positive and negative affect, thwarted belongingness, perceived burdensomeness, cognitive reappraisal, emotional suppression, and purpose in life with the MEmind smartphone App. SI was assessed 14 times during this period. Results Twenty-eight participants referred to SI at least once in longitudinal assessments. We found a lack of curvature and, thus, a relatively stable trajectory of SI. Two groups of latent dimensions were observed related to risk and protective factors of SI. One latent dimension of the risk factors (higher levels of thwarted belongingness, perceived burdensomeness, depressive symptoms, negative affect, and emotional suppression) best represented the group with moderate levels of SI, and a second latent dimension of protective variables (positive affect, cognitive reappraisal, and purpose in life) best represented the group with lower levels of SI. Discussion These findings may indicate that students with a sense of having a life worth living, in addition to having the ability to reevaluate their negative beliefs, are less likely to experience high levels of SI. Therefore, purpose in life would be a protective factor against the presence of SI.
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Affiliation(s)
| | - Andrea Conchado Peiró
- Department of Statistics and Applied Operations Research and Quality, Polytechnic University of Valencia, Valencia, Spain
| | - José H. Marco
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - María Luisa Barrigón
- Department of Psychiatry, Jiménez Díaz Foundation Hospital, Madrid, Spain
- Department of Psychiatry, University Hospital Virgen del Rocio, Seville, Spain
| | - Enrique Baca-García
- Department of Psychiatry, Jiménez Díaz Foundation Hospital, Madrid, Spain
- Department of Psychiatry, University Hospital Rey Juan Carlos, Mostoles, Spain
- Department of Psychiatry, General Hospital of Villalba, Madrid, Spain
- Department of Psychiatry, University Hospital Infanta Elena, Valdemoro, Spain
- Department of Psychiatry, Madrid Autonomous University, Madrid, Spain
- CIBERSAM (Centro de Investigacion en Salud Mental), Carlos III Institute of Health, Madrid, Spain
- Departamento de Psicología, Universidad Catolica del Maule, Talca, Chile
- Department of Psychiatry, Centre Hospitalier Universitaire de Nîmes, Nîmes, France
| | - Sandra Pérez Rodríguez
- Department of Personality, Evaluation and Psychological Treatment, University of Valencia, Valencia, Spain
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Vinette B, Côté J, El-Akhras A, Mrad H, Chicoine G, Bilodeau K. Routes of administration, reasons for use, and approved indications of medical cannabis in oncology: a scoping review. BMC Cancer 2022; 22:319. [PMID: 35331185 PMCID: PMC8953058 DOI: 10.1186/s12885-022-09378-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 03/07/2022] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Some patients diagnosed with cancer use medical cannabis to self-manage undesirable symptoms, including nausea and pain. To improve patient safety and oncological care quality, the routes of administration for use of medical cannabis, patients' reasons, and prescribed indications must be better understood. METHODS Based on the Joanna Briggs Institute guidelines, a scoping review was conducted to map the current evidence regarding the use of medical cannabis in oncological settings based on the experiences of patients diagnosed with cancer and their healthcare providers. A search strategy was developed with a scientific librarian which included five databases (CINAHL, Web of Science, Medline, Embase, and PsycINFO) and two grey literature sources (Google Scholar and ProQuest). The inclusion criteria were: 1) population: adults aged 18 and over diagnosed with cancer; 2) phenomena of interest: reasons for cannabis use and/or the prescribed indications for medical cannabis; 3) context: oncological setting. French- or English-language primary empirical studies, knowledge syntheses, and grey literature published between 2000 and 2021 were included. Data were extracted by two independent reviewers and subjected to a thematic analysis. A narrative description approach was used to synthesize and present the findings. RESULTS We identified 5,283 publications, of which 163 met the eligibility criteria. Two main reasons for medical cannabis use emerged from the thematic analysis: limiting the impacts of cancer and its side effects; and staying connected to others. Our results also indicated that medical cannabis is mostly used for three approved indications: to manage refractory nausea and vomiting, to complement pain management, and to improve appetite and food intake. We highlighted 11 routes of administration for medical cannabis, with oils and oral solutions the most frequently reported. CONCLUSION Future studies should consider the multiple routes of administration for medical cannabis, such as inhalation and edibles. Our review highlights that learning opportunities would support the development of healthcare providers' knowledge and skills in assessing the needs and preferences of patients diagnosed with cancer who use medical cannabis.
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Affiliation(s)
- Billy Vinette
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada.
- Research Chair in Innovative Nursing Practices, Montreal, QC, Canada.
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada.
- Center for Innovation in Nursing Education, Montreal, QC, Canada.
| | - José Côté
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
- Research Chair in Innovative Nursing Practices, Montreal, QC, Canada
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada
- Research center of the Montreal University Hospital Center, Montreal, QC, Canada
| | - Ali El-Akhras
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
| | - Hazar Mrad
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
| | - Gabrielle Chicoine
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
- Research Chair in Innovative Nursing Practices, Montreal, QC, Canada
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada
- Center for Innovation in Nursing Education, Montreal, QC, Canada
- Research center of the Montreal University Hospital Center, Montreal, QC, Canada
| | - Karine Bilodeau
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada
- Center for Innovation in Nursing Education, Montreal, QC, Canada
- Research center of the Montreal University Hospital Center, Montreal, QC, Canada
- Research Center of the Centre Intégré Universitaire de Santé Et de Services Sociaux de L'Est-de-L'Île-de-Montréal, Montreal, QC, Canada
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Sneed ML, Davis SR, Fetterling TJ, Prince MA, Eakman AM, Conner BT. Assessing invariance of cannabis use motives by veteran status and binary gender identity among college students. MILITARY PSYCHOLOGY 2022. [DOI: 10.1080/08995605.2022.2041996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Morgan L. Sneed
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Samuel R. Davis
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | | | - Mark A. Prince
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
| | - Aaron M. Eakman
- Department of Occupational Therapy, Colorado State University, Fort Collins, Colorado, USA
| | - Bradley T. Conner
- Department of Psychology, Colorado State University, Fort Collins, Colorado, USA
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Factores que diferencian el consumo frecuente y esporádico de marihuana en estudiantes universitarios. ACTA COLOMBIANA DE PSICOLOGIA 2021. [DOI: 10.14718/acp.2022.25.1.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Aunque el consumo de marihuana es altamente prevalente entre universitarios de Argentina, poco se sabe respecto a los factores que permiten distinguir a los consumidores frecuentes de marihuana de quienes consumen esporádicamente. Por esta razón, en el presente trabajo se indagó sobre las posibles variaciones en los contextos de consumo, motivos de consumo, normas percibidas y estrategias conductuales de protección entre universitarios con consumo frecuente o esporádico de marihuana, y se analizó la utilidad de este conjunto de variables para distinguir entre estos los tipos de consumidores mencionados. Para ello, se contó con una muestra de 1083 estudiantes universitarios argentinos que completó una encuesta en línea sobre el consumo de sustancias. En particular, este trabajo se realizó con la submuestra que reportó consumir marihuana en los últimos 30 días (n = 158; 51.3 % mujeres). Dicha encuesta interrogaba sobre el consumo de marihuana y las consecuencias negativas asociadas, así como por motivos de consumo, normas sociales percibidas y estrategias conductuales de protección. Como resultado, los consumidores frecuentes presentaron mayor cantidad de consecuencias negativas (M = 4.92) que los consumidores esporádicos (M = 1.82; p ≤ .05), y se halló un perfil distintivo en un conjunto de variables. A nivel multivariado, los motivos de animación (or = 1.230; p ≤ .05), las estrategias conductuales de protección (or = .941; p ≤ .05), el consumo en solitario (or = 2.024; p ≤ .05) y el consumo en fiestas universitarias (or = 2.669; p ≤ .05) discriminaron significativamente entre ambas clases de consumidores. En general, los hallazgos revelaron subpoblaciones heterogéneas de consumidores de marihuana que difieren no solo en el consumo y sus consecuencias, sino también en los contextos de consumo y en un conjunto de variables relevantes. Estas subpoblaciones distintivas requieren de intervenciones diferentes y específicas.
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Kouros CD, Papp LM, Kelly BC, Blumenstock SM. College-based social and situational predictors of real-time prescription drug misuse in daily life. Drug Alcohol Depend 2021; 227:108969. [PMID: 34482032 PMCID: PMC8464504 DOI: 10.1016/j.drugalcdep.2021.108969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/29/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND This study examined social and situational context predictors of prescription drug misuse among college-students at a large public university in the Midwest. Social and situational context predictors considered were hour of the day, weekend vs weekday, whether participants were at home or another place, and who they were with during instances of misuse. Salient social events, including home football games, city-regulated parties, and the 2019 Midwest polar vortex were also recorded. METHOD Using ecological momentary assessment methodology, 297 students completed momentary reports for 28 days. Participants indicated whether they had misused prescription medication (sedatives or sleeping pills, tranquilizers or anxiety medications, stimulants, and pain relievers) and reported on their social and situational context in the moment of misuse. RESULTS Multilevel modeling indicated that participants were more likely to misuse prescription medication earlier in the day vs. the evening, on weekdays vs. weekends, when at home vs. not at home, and while alone vs. with others. CONCLUSIONS This study provides descriptive information on the social context in which prescription drug misuse is most likely to occur among college students. Our findings suggest that social and situational contexts of prescription drug misuse likely differ as compared to other substances (e.g., alcohol) among college students. Further research aimed at identifying momentary predictors of prescription drug misuse in this population is warranted.
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Affiliation(s)
- Chrystyna D. Kouros
- Department of Psychology, Southern Methodist University, PO BOX 750442, Dallas, TX 75275
| | - Lauren M. Papp
- Department of Human Development and Family Studies, University of Wisconsin-Madison, 1300 Linden Drive, Madison, WI 53706
| | - Brian C. Kelly
- Department of Sociology, Purdue University, 700 W. State St., West Lafayette, IN 47907
| | - Shari M. Blumenstock
- Kinsey Institute, Indiana University, 150 S. Woodlawn Ave., Bloomington, IN 47405
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Jackson KM, Stevens AK, Sokolovsky AW, Hayes KL, White HR. Real-world simultaneous alcohol and cannabis use: An ecological study of situational motives and social and physical contexts. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2021; 35:698-711. [PMID: 34472880 DOI: 10.1037/adb0000765] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE 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 (n = 341; 52% female; 75% White; 10% Latinx/Hispanic; age 18-24) from three U.S. college campuses completed 8 weeks of surveys up to five times a day. Three-level generalized linear mixed-effects models tested the effects of situational motives and social and physical contexts on occasion type (SAM vs. cannabis-only), cannabis use, and subjective effects. RESULTS Situational social and enhancement motives were related to greater odds of SAM relative to cannabis-only use; expansion motives were reported more often on cannabis-only occasions. Using with others and at friends' places, being with others consuming cannabis, and being with others who are intoxicated were more likely when combining alcohol with cannabis. Increased number of cannabis uses and subjective effects in a social context were evident only on cannabis-only occasions. Using alone and using at home were greater on cannabis-only occasions and were associated with lower cannabis use and subjective effects. CONCLUSIONS The combination of alcohol and cannabis use occurs during social situations and when motivated by positive reinforcement but number of cannabis uses is not increased when consuming cannabis with alcohol in social situations. Characterizing the complex interplay of situational factors that contribute to risky use will inform interventions. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Meisel SN, Padovano HT, Miranda R. Combined pharmacotherapy and evidence-based psychosocial Cannabis treatment for youth and selection of cannabis-using friends. Drug Alcohol Depend 2021; 225:108747. [PMID: 34052685 PMCID: PMC8282736 DOI: 10.1016/j.drugalcdep.2021.108747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/13/2021] [Accepted: 03/27/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Theoretical models of behavior change argue that youth should decrease their time with cannabis-using friends and increase their time with non-using friends during treatment. Informed by behavior-change models of recovery and socialization and selection peer-influence models, the current study examined whether combining evidence-based psychosocial treatment with adjunctive pharmacotherapy helps youth decrease their affiliations with cannabis-using friends and increase their affiliations with non-using friends during cannabis misuse treatment. METHODS Youth ages 15-24 years (51 % male), participated in a double-blind randomized clinical trial that tested the effects of motivational enhancement and cognitive behavioral therapy (MET-CBT) plus topiramate (N = 39) or placebo (N = 26) on cannabis craving and use. Ecological momentary assessment data, collected via smartphones throughout the six-week intervention, assessed youths' time with cannabis-using and non-using friends, cannabis use, and craving in daily life. Multiple group multilevel structural equation modeling tested study hypotheses. RESULTS Across the topiramate (48 % completion rate) and placebo (77 % completion rate) conditions, greater time spent with cannabis-using friends promoted greater next day cannabis use and craving (socialization effect). In turn, cannabis craving, but not use, promoted continued selection of cannabis-using friends. This indirect effect was only supported in the placebo condition due to the selection piece of this cycle not being significant for youth who received topiramate. Neither cannabis craving nor use were associated with time with non-using friends the next day. CONCLUSIONS MET-CBT and adjunctive topiramate pharmacotherapy interrupted youth selection processes. This finding suggests that changing peer affiliations could be one mechanism by which treatments can work.
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Affiliation(s)
- Samuel N. Meisel
- Center for Alcohol and Addiction Studies, Brown University, Providence, RI, 02912, USA.; E. P. Bradley Hospital, Riverside, RI 02915
| | | | - Robert Miranda
- Center for Alcohol and Addiction Studies, Brown University, Providence, RI, 02912, USA; E. P. Bradley Hospital, Riverside, RI, 02915, USA.
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Meisel SN, Carpenter RW, Treloar Padovano H, Miranda R. Day-level shifts in social contexts during youth cannabis use treatment. J Consult Clin Psychol 2021; 89:251-263. [PMID: 34014688 DOI: 10.1037/ccp0000647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Social context plays a critical role in youth cannabis use. Yet few studies have examined if and when social contexts shift during cannabis use treatment. This study examined daily shifts in youths' social contexts with the goal of characterizing how specific social contexts (e.g., time with cannabis-using friends or siblings) relate to cannabis craving and use during cannabis treatment. METHOD Participants were 65 cannabis users (51% male), ages 15-24 years, who participated in a double-blind randomized clinical trial that tested the effects of motivational enhancement and cognitive behavioral therapies plus either adjunctive pharmacotherapy or placebo on cannabis craving and use. Ecological momentary assessment (EMA) data, collected from a pre-randomization period through the completion of the six-week intervention, assessed youths' social contexts, cannabis use, and craving. RESULTS Time-varying effects models identified shifts in social contexts during treatment. Overall, time spent with cannabis-using friends and siblings decreased, where time spent with non-using friends or alone increased across the trial. Time with parents or non-using siblings was unchanged. Comparing the relative associations of social contexts with same-day craving and use, more time with cannabis-using friends and with siblings was uniquely associated with greater craving and use. CONCLUSIONS Social context is an important factor in youth substance-use treatment. While time spent with cannabis-using friends and siblings decreased over treatment for all participants, those who continued to spend time with using individuals reported greater craving and use. This research supports increased attention to shifting youths' social contexts to enhance treatment success. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Watkins SL, Karliner-Li P, Lee YO, Koester KA, Ling PM. A mixed-methods study to inform the clarity and accuracy of cannabis-use and cannabis-tobacco co-use survey measures. Drug Alcohol Depend 2021; 224:108697. [PMID: 33930639 PMCID: PMC8180503 DOI: 10.1016/j.drugalcdep.2021.108697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Legalization of medical and recreational cannabis in US states has been accompanied by increases in availability, acceptability, and diversity in methods of cannabis use, as well as an increase in devices and methods for cannabis-tobacco co-use. Updated and specific survey measures of cannabis and cannabis-tobacco co-use are needed. METHODS We employed a mixed-methods approach to identify sources of specification and measurement error in cannabis and cannabis-tobacco co-use measures. We surveyed and interviewed 36 young adult (age 18-29) cannabis and tobacco co-users in California (2017-2018), triangulated with document analysis of online cannabis websites and forums. We investigated how survey reports of cannabis use and cannabis-tobacco co-use compared to narrative descriptions provided during in-depth interviews. We identify key strategies for researchers collecting self-reported survey data to enhance accuracy and comprehensiveness of measures. FINDINGS Potential sources of survey error included: broad variation in cannabinoid content and concentration, inconsistent interpretation of questions between participants and researchers (e.g. blunts were not considered co-use), and substantial variation in dosage within and between products. No evidence of survey recall bias or response editing was detected. CONCLUSION To enhance survey accuracy, we recommend surveys specify which cannabis delivery methods and forms are included and excluded in each measure, differentiate between cannabis products, and explicitly include or exclude CBD product use.
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Affiliation(s)
- Shannon Lea Watkins
- Center for Tobacco Control Research and Education and Division of General Internal Medicine, Department of Medicine, University of California San Francisco, 530 Parnassus Ave. Ste 366, San Francisco, CA, 94143, United States.
| | | | - Youn Ok Lee
- Center for Health Policy Science and Tobacco Research, RTI International, United States.
| | - Kimberly A Koester
- University of California, Department of Medicine, San Francisco, United States.
| | - Pamela M Ling
- Center for Tobacco Control Research and Education and Division of General Internal Medicine, Department of Medicine, University of California San Francisco, 530 Parnassus Ave. Ste 366, San Francisco, CA, 94143, United States.
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Looby A, Prince MA, Villarosa-Hurlocker MC, Conner BT, Schepis TS, Bravo AJ. Young adult use, dual use, and simultaneous use of alcohol and marijuana: An examination of differences across use status on marijuana use context, rates, and consequences. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2021; 35:682-690. [PMID: 34591517 DOI: 10.1037/adb0000742] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Objective: Co-use of alcohol and marijuana has increased among college students, though comparisons among simultaneous (i.e., use of both substances such that effects overlap), dual (i.e., use of both substances within a similar time period but without overlapping effects), and marijuana-only use are limited. This study aimed to understand differences between simultaneous, dual, and marijuana-only users on marijuana use rates, consequences, and context of use in a multi-university study. Method: College students (N = 4,764; Mage = 19.9 years) who were mainly female (70.6%) and White (67.9%) completed an online survey. The Marijuana Use Grid captured marijuana use quantity/frequency, and the Brief Marijuana Consequences Questionnaire and the Cannabis Use Disorders Identification Test-Revised assessed problem use. Location, method of consumption, and social context of use also were assessed. Results: Fifty-five percent of the sample endorsed lifetime use of alcohol and marijuana. Of these students, 36.1% endorsed past-month simultaneous use, 10.8% endorsed past-month dual use, and 6.4% endorsed past-month marijuana-only use. Simultaneous users reported more marijuana use and problems than dual users. Marijuana-only users did not differ from simultaneous users on marijuana use indices, though they reported greater use than dual users as well. Simultaneous users used marijuana in plant form, at parties, and with unknown others a greater percentage of the time than dual users, while dual users used edibles and ingested marijuana a greater percentage of the time. Conclusions: Given their greater levels of marijuana use and marijuana-related problems, screening and interventions for simultaneous alcohol-marijuana use are needed in college students. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
| | | | | | | | - Ty S Schepis
- Department of Psychology, Texas State University
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Fite PJ, Díaz KI, Doyle RL. Does Behavioral Dysregulation Moderate the Links Between Contextual Factors and Substance Use Among Detained Youth? JOURNAL OF CHILD & ADOLESCENT SUBSTANCE ABUSE 2021. [DOI: 10.1080/1067828x.2021.1907265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Meisel MK, Treloar Padovano H, Miller MB, Clark MA, Barnett NP. Associations between social network characteristics and alcohol use alone or in combination with cannabis use in first-year college students. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2021; 35:650-658. [PMID: 33617273 PMCID: PMC8380257 DOI: 10.1037/adb0000704] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Simultaneous use of alcohol and cannabis is common among young adults, but little research has examined social ties and their relation to simultaneous use. This study investigated the social network characteristics of college students at two time points in the first year of college. Participants were categorized into those who used alcohol and cannabis, such that their effects overlap (simultaneous users), those who used both substances without overlapping effects (concurrent users), and those who used alcohol only. METHOD First-year college students (N = 1,294) completed online questionnaires during the fall and spring semester. At both assessments, participants nominated up to 10 important peers in their class, reported on peers' alcohol and cannabis use, and reported their own use of alcohol or cannabis with each peer. RESULTS Concurrent and simultaneous users reported a greater proportion of drinking buddies than those who used alcohol only. A greater proportion of friends who used alcohol or cannabis, but not the proportion who were "drinking buddies" or "cannabis buddies," was associated with increased odds of simultaneous use relative to concurrent use. Participants nominated network ties that paralleled their own substance use (e.g., the majority of simultaneous users' networks ties were also simultaneous users). CONCLUSION Having a larger percentage of friends who use cannabis and alcohol is associated with increased odds of using both substances at the same time, perhaps because it gives access to both substances at the same time. Interventions should account for amount of exposure to alcohol and cannabis use from network members. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
| | | | | | - Melissa A Clark
- Department of Health Services, Policy and Practice, Brown University School of Public Health
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Thomas NS, Salvatore JE, Gillespie NA, Aliev F, Ksinan AJ, Dick DM. Cannabis use in college: Genetic predispositions, peers, and activity participation. Drug Alcohol Depend 2021; 219:108489. [PMID: 33373877 PMCID: PMC8369492 DOI: 10.1016/j.drugalcdep.2020.108489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Among adult college students in the US, cannabis use is common and associated with considerable negative consequences to health, cognition, and academic functioning, underscoring the importance of identifying risk and protective factors. Cannabis use is influenced by genetic factors, but genetic risk is not determinative. Accordingly, it is critical to identify environments that reduce risk among those who are at elevated genetic risk. This study examined the impact of polygenic scores for cannabis initiation, various forms of social activity participation, and peer deviance on recent cannabis use. Our aim was to test whether these environments moderate genetic risk for cannabis use. METHODS Data came from a longitudinal sample of undergraduate college students of European American (EA; NEA = 750) and African American (AA; NAA = 405) ancestry. Generalized estimating equations with a logit link function were used to examine main effects and two-way interactions. RESULTS Engagement with church activities was associated with lower probability of cannabis use. Peer deviance was associated with higher probability of cannabis use. Engagement with community activities moderated the influence of the polygenic risk score in the EA sample, such that PRS was associated with recent cannabis use among those who never engaged in community activities. This effect did not replicate in AAs, which may have been due to the portability of PRS based on EA discovery samples. CONCLUSIONS Results suggest that community activities may limit the influence of genetic risk, as associations between PRS and cannabis use were only observed among individuals who never engaged in community activities.
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Affiliation(s)
- Nathaniel S Thomas
- Department of Psychology, Virginia Commonwealth University, Box 842018, Richmond, VA, 23284-2018, United States; College Behavioral and Emotional Health Institute, Virginia Commonwealth University, Box 843092, Richmond, VA, 23284-3092, United States.
| | - Jessica E Salvatore
- Department of Psychology, Virginia Commonwealth University, Box 842018, Richmond, VA, 23284-2018, United States; Virginia Institute for Psychiatric and Behavioral Genetics, Box 980126, Richmond, VA, 23298-0126, United States
| | - Nathan A Gillespie
- Department of Psychiatry, Virginia Commonwealth University, Box 980308, Richmond, VA, 23219-1359, United States; Virginia Institute for Psychiatric and Behavioral Genetics, Box 980126, Richmond, VA, 23298-0126, United States; Genetic Epidemiology, QIMR Berghofer Medical Research Institute, Locked Bag 2000, Royal Brisbane Hospital, QLD, 4029, Brisbane, Australia
| | - Fazil Aliev
- Department of Psychology, Virginia Commonwealth University, Box 842018, Richmond, VA, 23284-2018, United States; Karabuk University, Faculty of Business, Turkey
| | - Albert J Ksinan
- Department of Health Behavior and Policy, Virginia Commonwealth University, 830 E Main St., Richmond, VA, 23219, United States
| | - Danielle M Dick
- Department of Psychology, Virginia Commonwealth University, Box 842018, Richmond, VA, 23284-2018, United States; College Behavioral and Emotional Health Institute, Virginia Commonwealth University, Box 843092, Richmond, VA, 23284-3092, United States; Department of Human & Molecular Genetics, Virginia Commonwealth University, Box 980033, Richmond, VA, 23298-0033, United States.
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Dyar C, Feinstein BA, Crosby S, Newcomb ME, Whitton SW. Social Context of Cannabis Use: Associations with Problematic Use, Motives for Use, and Protective Behavioral Strategies among Sexual Minorities Assigned Female at Birth. ANNALS OF LGBTQ PUBLIC AND POPULATION HEALTH 2021; 2:299-314. [PMID: 34993507 PMCID: PMC8729452 DOI: 10.1891/lgbtq-2020-0075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sexual and gender minorities assigned female at birth (SGM-AFAB) are at heightened risk for problematic cannabis use compared to heterosexual cisgender women. Despite evidence that social context influences patterns of substance use, no known studies have examined context of cannabis use among SGM-AFAB. The current study examined two aspects of social contexts of cannabis use (locations and companions) and their associations with problematic use, motives for use, and protective behavioral strategies among SGM-AFAB. We utilized three waves of data from 358 SGM-AFAB from a larger study. We aimed to: (1) identify subgroups of SGM-AFAB based on contexts in which they used cannabis; (2) examine changes in contexts over time; and (3) examine associations between contexts, problematic use, motives for use, and protective behavioral strategies. Using latent class analysis, we identified four classes: those who used cannabis at home; those who used with friends; those who used alone and with friends; and those who used in all contexts. Those who used in all contexts reported more problematic use, higher coping motives, and used fewer protective behavioral strategies compared to other classes. Transitioning to using cannabis in fewer contexts was associated with a subsequent decrease in problematic use. Classes that were most stable over time (using in all contexts or alone and with friends) were also those that were associated with more problematic use. Social context has important implications for problematic cannabis use among SGM-AFAB. As such, interventions may benefit from attending to social context to reduce problematic use in this population.
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Affiliation(s)
- Christina Dyar
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
| | - Brian A. Feinstein
- Department of Psychology, Rosalind Franklin University of Medicine and Science
| | - Shariell Crosby
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
| | - Michael E. Newcomb
- Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University
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Zuckermann AME, Gohari MR, de Groh M, Jiang Y, Leatherdale ST. The role of school characteristics in pre-legalization cannabis use change among Canadian youth: implications for policy and harm reduction. HEALTH EDUCATION RESEARCH 2020; 35:297-305. [PMID: 32623462 DOI: 10.1093/her/cyaa018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Reducing youth cannabis use in Canada is a public health priority with schools of interest as a potential modifier of behavior and as a venue for prevention programming. This work aimed to provide a basis for future policy and programming by evaluating pre-legalization cannabis use change patterns in schools and the impact of school characteristics on these patterns. Average rates of cannabis use behavior change (initiation, escalation, reduction, cessation) were collected from 88 high schools located in Ontario and Alberta, Canada participating in the COMPASS prospective cohort study. There was little variability in cannabis use behaviors between schools with intra-class correlation coefficients lowest for cessation (0.02) and escalation (0.02) followed by initiation (0.03) and reduction (0.05). Modest differences were found based on school province, urbanicity and student-peer use. Cannabis ease of access rates had no significant effect. Fewer than half the schools reported offering school drug use prevention programs; these were not significantly associated with student cannabis use behaviors. In conclusion, current school-based cannabis prevention efforts do not appear sufficiently effective. Comprehensive implementation of universal prevention programs may reduce cannabis harms. Some factors (urbanicity, peer use rates) may indicate which schools to prioritize.
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Affiliation(s)
- Alexandra M E Zuckermann
- School of Public Health and Health Systems, University of Waterloo, 200 University Avenue, Waterloo, ON N2L 3G1, Canada
- Applied Research Division, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON K1A 0K9, Canada
| | - Mahmood R Gohari
- School of Public Health and Health Systems, University of Waterloo, 200 University Avenue, Waterloo, ON N2L 3G1, Canada
| | - Margaret de Groh
- Applied Research Division, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON K1A 0K9, Canada
| | - Ying Jiang
- Applied Research Division, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON K1A 0K9, Canada
| | - Scott T Leatherdale
- School of Public Health and Health Systems, University of Waterloo, 200 University Avenue, Waterloo, ON N2L 3G1, Canada
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Wilhelm J, Abudayyeh H, Perreras L, Taylor R, Peters EN, Vandrey R, Hedeker D, Mermelstein R, Cohn A. Measuring the temporal association between cannabis and tobacco use among Co-using young adults using ecological momentary assessment. Addict Behav 2020; 104:106250. [PMID: 31918167 DOI: 10.1016/j.addbeh.2019.106250] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/11/2019] [Accepted: 12/02/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Jess Wilhelm
- Battelle Memorial Institute, Public Health Center for Substance Use Research, 6115 Falls Rd., Baltimore, MD, 21209, United States.
| | - Haneen Abudayyeh
- Battelle Memorial Institute, Public Health Center for Substance Use Research, 6115 Falls Rd., Baltimore, MD, 21209, United States.
| | - Lexie Perreras
- Battelle Memorial Institute, Public Health Center for Substance Use Research, 6115 Falls Rd., Baltimore, MD, 21209, United States.
| | - Reddhyia Taylor
- Battelle Memorial Institute, Public Health Center for Substance Use Research, 6115 Falls Rd., Baltimore, MD, 21209, United States.
| | - Erica N Peters
- Battelle Memorial Institute, Public Health Center for Substance Use Research, 6115 Falls Rd., Baltimore, MD, 21209, United States.
| | - Ryan Vandrey
- Johns Hopkins University School of Medicine, Behavioral Pharmacology Research Unit, 5510 Nathan Shock Dr., Baltimore, MD 21224, United States.
| | - Donald Hedeker
- The University of Chicago, Department of Public Health Sciences, 5841 S. Maryland Ave., Rm. W-254, MC2000, Chicago, IL 60637, United States.
| | - Robin Mermelstein
- University of Illinois at Chicago, Institute for Health Research and Policy, Psychology Department, 1747 W. Roosevelt Rd. 544 WROB, MC 275, Chicago, IL 60607, United States.
| | - Amy Cohn
- University of Oklahoma Health Sciences Center, Oklahoma Tobacco Research Center, 655 Research Parkway, Suite 400, Oklahoma City, OK, 73104, United States.
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Pilatti A, Bravo AJ, Pautassi RM. Contexts of alcohol use: A latent class analysis among Argentinean college students. Drug Alcohol Depend 2020; 209:107936. [PMID: 32145662 DOI: 10.1016/j.drugalcdep.2020.107936] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Alcohol use, and the association between alcohol-related variables and drinking outcomes, seem to be context dependent. We employed Latent Class Analysis, a person-centered approach, to identify distinct subpopulations based on contexts of alcohol use. We also examined if the resulting classes differ in a set of alcohol-related variables that hold promise as potential targets of interventions. METHOD Argentinean college students N = 1083; 64 % women; M age = 19.73 ± 3.95) completed an online survey that assessed alcohol outcomes and related variables [motives for substance use, protective behavioral strategies (PBS) and normative perceptions of alcohol use]. RESULTS Latent Class Analysis identified a 4-classes model for drinking contexts. These classes showed differential patterns of alcohol use (both in terms of frequency and quantity) and also differed in alcohol-related variables. Alcohol use was more prevalent in contexts characterized by the presence of peers, particularly the closest friend, small same-sex or coed groups. Close to 50 % of the sample reported drinking with family members. Students with a high probability of engaging in pregaming and nightclub drinking tend to use more PBS to control how much alcohol is consumed than those who do not drink in these contexts. All the classes significantly differed in their social reasons for drinking and in the number of alcohol-related negative consequences. CONCLUSIONS Our findings revealed subpopulations of college students that are heterogeneous regarding contexts of alcohol use, patterns of use and in a number of relevant variables. These distinctive subpopulations require different targeted interventions.
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Affiliation(s)
- Angelina Pilatti
- Universidad Nacional de Córdoba, Facultad de Psicología, Córdoba, Argentina; Instituto de Investigaciones Psicológicas, IIPsi-CONICET-UNC, Argentina; Enrique Barros y Enfermera Gordillo s/n. Ciudad Universitaria, Córdoba, CP 5000, Argentina.
| | - Adrian J Bravo
- Department of Psychological Sciences William & Mary, Virginia, USA 420 Landrum Drive, Williamsburg, VA 23817, USA
| | - Ricardo Marcos Pautassi
- Universidad Nacional de Córdoba, Facultad de Psicología, Córdoba, Argentina; Instituto de Investigación Médica M. y M. Ferreyra, Physiology Department, INIMEC-CONICET-UNC, Friuli 2434, Córdoba, Córdoba, 5000, Argentina
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Findings From a Trial of the Smartphone and OnLine Usage-based eValuation for Depression (SOLVD) Application: What Do Apps Really Tell Us About Patients with Depression? Concordance Between App-Generated Data and Standard Psychiatric Questionnaires for Depression and Anxiety. J Psychiatr Pract 2019; 25:365-373. [PMID: 31505521 DOI: 10.1097/pra.0000000000000420] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Depression imposes a notable societal burden, with limited treatment success despite multiple available psychotherapy and medications choices. Potential reasons may include the heterogeneity of depression diagnoses and the presence of comorbid anxiety symptoms. Despite technological advances and the introduction of many mobile phone applications (apps) claiming to relieve depression, major gaps in knowledge still exist regarding what apps truly measure and how they correlate with psychometric questionnaires. The goal of this study was to evaluate whether mobile daily mood self-ratings may be useful in monitoring and classifying depression symptoms in a clinically depressed population compared with standard psychometric instruments including the Patient Health Questionaire-9 (PHQ-9), the Hamilton Rating Scale for Depression (HAM-D), and the Hamilton Anxiety Rating Scale (HAM-A). METHOD For this study, 22 patients with major depressive disorder with or without comorbid anxiety disorder were recruited. The diagnosis of depression was confirmed through the Mini International Neuropsychiatric Interview (MINI). Over an 8-week period, daily moods were self-reported through the Smartphone and OnLine Usage-based eValuation for Depression (SOLVD) application, a custom-designed application that was downloaded onto patients' mobile devices. Depression and anxiety symptoms were also measured biweekly using the HAM-D, HAM-A, and PHQ-9. RESULTS Significant correlations were observed among self-evaluated mood, daily steps taken, SMS (text) frequency, average call duration, and biweekly psychometric scores (|r|>0.5, P<0.05). The correlation coefficients were higher in individuals with more severe depressive symptoms. CONCLUSIONS Although this study, given its limited sample size, was exploratory in nature, it helps fill a significant gap in our knowledge of the concordance between ratings obtained on the Ham-D, Ham-A, and the PHQ-9 psychometric instruments and data obtained via a smartphone app. These questionnaires represent gold-standard, commonly used psychiatric research/clinical instruments, and, thus, this information can serve as a foundation for digital phenotyping for depression and pave the way for interventional studies using smartphone applications.
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Testa M, Wang W, Derrick JL, Brown WC, Collins RL. Does morning affect contribute to daily Cannabis use? Addict Behav 2019; 95:64-69. [PMID: 30856545 PMCID: PMC6545134 DOI: 10.1016/j.addbeh.2019.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/25/2019] [Accepted: 03/01/2019] [Indexed: 11/26/2022]
Abstract
Several theories posit that cannabis and other substances are used to reduce negative affect. This daily report study considered whether variations in positive and negative affect, reported each morning, contributed to the likelihood of cannabis use later that day. We also explored whether levels of positive and negative affect reported immediately after cannabis use improved, relative to that day's morning levels. The sample included 183 men and 183 women representing heterosexual, cannabis-using couples from the community. Participants made independent, daily reports of affect and cannabis use episodes for 30 consecutive days. Using multilevel modeling, we modeled men's and women's use of cannabis on a given day as a function of morning levels of positive, hostile, and anxious affect, accounting for partner cannabis use that day, and mean levels of positive and negative affect. Men and women were more likely to use cannabis on a given day when morning positive affect was lower than typical for the person and when partner used cannabis that day. Neither hostile nor anxious affect contributed to later use of cannabis. Immediately after cannabis use, positive affect increased, and hostile and anxious affect decreased relative to that day's morning levels. The improved affect immediately after use suggests a mechanism of positive reinforcement.
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Affiliation(s)
- Maria Testa
- Department of Psychology and Clinical and Research Institute on Addictions, University at Buffalo, 1021 Main Street, Buffalo, NY 14203, United States.
| | - Weijun Wang
- Department of Psychology and Clinical and Research Institute on Addictions, University at Buffalo, 1021 Main Street, Buffalo, NY 14203, United States
| | - Jaye L Derrick
- Department of Psychology, University of Houston, 3695 Cullen Boulevard, Houston, TX 77204-5022, United States
| | - Whitney C Brown
- Department of Psychology and Clinical and Research Institute on Addictions, University at Buffalo, 1021 Main Street, Buffalo, NY 14203, United States
| | - R Lorraine Collins
- Department of Community Health and Health Behavior, School of Public Health and Health Professions, University at Buffalo, 3435 Main Street, Buffalo, NY 14214, United States
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Mason MJ, Brown A, Moore M. The accuracy of young adult cannabis users' perceptions of friends' cannabis and alcohol use. Addict Behav 2019; 95:28-34. [PMID: 30831338 DOI: 10.1016/j.addbeh.2019.02.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 02/17/2019] [Accepted: 02/21/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Understanding the complex influence of peers on young adult substance use is an important component of intervention research and is challenging methodologically. The false consensus theory suggests that individuals falsely attribute their own substance use behaviors onto others, producing biased data. METHODS We tested this theory with 39 young adults who had a cannabis use disorder and a mean age of 20. Participants (egos) recruited three of their close friends (alters). Egos reported their past 30-day cannabis and alcohol use and their perceptions of alters' use. Alters also reported their actual past 30-day cannabis and alcohol use. RESULTS Results demonstrated that egos were very accurate in their perceptions of the frequency of alters' cannabis (ρ = 0.82, p < 0.001) and alcohol (ρ = 0.74, p < 0.001) use. Linear regression models predicted alters' actual cannabis and alcohol use based on egos' perceptions of alters' use, controlling for egos' own substance use. Egos' perceptions of alters' cannabis use strongly predicted alters' actual use (β = 0.80, p < 0.001, adj-R2 = 0.67), and egos' perceptions of alters' alcohol use also predicted alters' actual use (β = 0.66, p < 0.001, adj-R2 = 0.62). Egos' own substance use did not predict alters' use in either model. CONCLUSIONS Results provide evidence that the false consensus theory may be limited when applied to young adults with cannabis use disorder within a close-friend research framework. The results support the hypothesis that young adults are very accurate in their perceptions of the frequency of close friends' substance use and that these perceptions are independent of egos' own use. These findings support the continued use of ego-centric reported close peer substance use for understanding peer effects.
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Affiliation(s)
- Michael J Mason
- University of Tennessee, Center for Behavioral Health Research, 213 Henson Hall, Knoxville, TN 37996-3332, USA.
| | - Aaron Brown
- University of Tennessee, Center for Behavioral Health Research, 213 Henson Hall, Knoxville, TN 37996-3332, USA.
| | - Matthew Moore
- University of Tennessee, Center for Behavioral Health Research, 213 Henson Hall, Knoxville, TN 37996-3332, USA.
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Spinella TC, Stewart SH, Barrett SP. Context matters: Characteristics of solitary versus social cannabis use. Drug Alcohol Rev 2019; 38:316-320. [PMID: 30779237 DOI: 10.1111/dar.12912] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 01/14/2019] [Accepted: 01/21/2019] [Indexed: 01/30/2023]
Abstract
INTRODUCTION AND AIMS Given the increase in cannabis availability and use in North America, identification of risk factors for cannabis use and dependence is paramount. One factor that may be associated with various cannabis-related adverse outcomes is the context in which it is used. This secondary analysis study sought to examine the extent to which the social context of cannabis use is related to patterns of use and associated harms. DESIGN AND METHODS One hundred and eighty-eight adult cannabis users were community-recruited in Halifax, Canada. Participants took part in a face-to-face structured interview where they provided information about the social context of their most recent cannabis-using occasion and about their patterns of, and motives for, cannabis use. RESULTS Compared to individuals reporting their most recent cannabis-using occasion as social, solitary users (n = 55) were significantly more likely to screen positive for psychosis, endorse more symptoms of cannabis abuse/dependence, report using cannabis to cope, and use cannabis on more days within the previous 30 days. On the other hand, social users were significantly more likely to report using alcohol in addition to cannabis during their most recent cannabis-using occasion (all P < 0.05). DISCUSSION AND CONCLUSIONS Results suggest that solitary cannabis use may be associated with specific motives for use and future adverse consequences. Findings from this study serve as a guide for future investigations which could ultimately inform public policy and the development of targeted harm-reduction strategies.
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Affiliation(s)
- Toni C Spinella
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada
| | - Sherry H Stewart
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada.,Department of Psychiatry, Dalhousie University, Halifax, Canada
| | - Sean P Barrett
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada.,Department of Psychiatry, Dalhousie University, Halifax, Canada
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D'Silva J, Boekeloo B, Seaman E, Quinton S. Marijuana risk perceptions are associated with past-month marijuana use among Black first-year college students at a historically Black university. J Ethn Subst Abuse 2019; 19:623-634. [PMID: 30714497 DOI: 10.1080/15332640.2018.1556765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To examine the relationship between marijuana risk perceptions and marijuana use, and assess the potential moderating role of stress among Black students from a historically Black university, a convenience sample of students (n = 213) was surveyed. The majority (87.9%) of the sample was Black and 52% were female. Over a third (35.1%) reported past 30-day marijuana use, and a majority (58.4%) reported no or slight risk from using marijuana once or twice weekly. Higher marijuana risk perceptions were associated with lower odds of marijuana use (OR = .45, 95% CI [0.32, 0.64]). No significant relationship between stress and marijuana use was found. Perception of marijuana risk warrants further examination as a predictor of marijuana use.
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Affiliation(s)
| | | | | | - Sylvia Quinton
- University of Maryland Eastern Shore, Princess Anne, Maryland
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Buckner JD, Walukevich KA, Lewis EM. Cannabis use motives on weekends versus weekdays: Direct and indirect relations with cannabis use and related problems. Addict Behav 2019; 88:56-60. [PMID: 30142485 DOI: 10.1016/j.addbeh.2018.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 08/07/2018] [Accepted: 08/13/2018] [Indexed: 11/20/2022]
Abstract
College cannabis users report using more cannabis during the weekend than on weekdays, yet little attention has been paid to the role of weekend and weekday-specific motives for use. The present investigation evaluated the impact of weekend and weekday-specific cannabis motives on cannabis use and related problems among current (past-3 month) cannabis using undergraduates (N = 276). Participants reported more cannabis use motives during the weekend than weekday. Enhancement and social motives were greater than coping, conformity, and expansion motives during weekends. Enhancement and conformity motives were indirectly related to problems via cannabis use frequency for both weekdays and weekends. Yet social, coping, and expansion motives were indirectly related to problems via cannabis use frequency for only weekdays. Findings support the differential impact of weekend and weekday-specific motives on cannabis use and related problems.
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Affiliation(s)
- Julia D Buckner
- Department of Psychology, Louisiana State University, 236 Audubon Hall, Baton Rouge, LA 70803, USA.
| | - Katherine A Walukevich
- Department of Psychology, Louisiana State University, 236 Audubon Hall, Baton Rouge, LA 70803, USA
| | - Elizabeth M Lewis
- Department of Psychology, Louisiana State University, 236 Audubon Hall, Baton Rouge, LA 70803, USA
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Tomko RL, McClure EA. Introduction to the special issue: Utilizing ambulatory assessment to better understand the etiology, maintenance, treatment, and remission of addictive disorders. Addict Behav 2018; 83:1-4. [PMID: 29661656 DOI: 10.1016/j.addbeh.2018.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rachel L Tomko
- Medical University of South Carolina, Department of Psychiatry and Behavioral Sciences, Charleston, SC, USA.
| | - Erin A McClure
- Medical University of South Carolina, Department of Psychiatry and Behavioral Sciences, Charleston, SC, USA
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Brown WC, Wang W, Testa M. Alcohol and Marijuana use in Undergraduate Males: Between- and Within-Person Associations with Interpersonal Conflict. CANNABIS (ALBUQUERQUE, N.M.) 2018; 1:48-59. [PMID: 30298142 PMCID: PMC6173484 DOI: 10.26828/cannabis.2018.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Among college students, interpersonal conflict with others is a common, yet stressful negative interpersonal experience. Research suggests that drinking episodes may contribute to the occurrence of conflict. Marijuana use, independently or in conjunction with alcohol, may also influence the likelihood of subsequent conflict. OBJECTIVES We considered the temporal effects of independent and simultaneous alcohol and marijuana use episodes on the occurrence of interpersonal conflict. Use of multilevel modeling allowed us to distinguish the within-person effects of substance use from between-person differences in frequency of use. METHODS Within a sample of 427 college freshman males over 56 days of daily reports, we examined the independent and interactive effects of episodes of alcohol and marijuana on the odds of conflict within the next 1-, 2-, 3-, and 4 hours. RESULTS Multilevel modeling analyses showed that drinking episodes increased the likelihood of conflict occurring within the next 1, 2, 3, and 4 hours. Marijuana had weaker positive effects, significant only within the 2 hour window. There were no alcohol by marijuana interaction effects in any analysis. CONCLUSIONS/IMPORTANCE Both marijuana and alcohol independently increased the likelihood of interpersonal conflict; however, the marijuana effect appeared less robust. As marijuana use becomes more normative and accessible for college students, it is important to understand the extent to which marijuana use results in negative consequences and the contexts under which these effects unfold.
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Affiliation(s)
- Whitney C Brown
- Research Institute on Addictions, University at Buffalo, State University of New York
| | - Weijun Wang
- Research Institute on Addictions, University at Buffalo, State University of New York
| | - Maria Testa
- Research Institute on Addictions, University at Buffalo, State University of New York
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