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Troxel WM, Rodriguez A, Seelam R, Dong L, Perez LG, Tucker JS, Siconolfi D, D'Amico EJ. A latent class approach to understanding longitudinal sleep health and the association with alcohol and cannabis use during late adolescence and emerging adulthood. Addict Behav 2022; 134:107417. [PMID: 35853405 PMCID: PMC10431952 DOI: 10.1016/j.addbeh.2022.107417] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 06/14/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Sleep is a multi-dimensional health behavior associated with elevated risk of substance use. This is the first study to utilize a latent class approach to characterize sleep health across multiple dimensions and across time from late adolescence to emerging adulthood, and to examine associations with alcohol and cannabis use trajectories. METHODS The sample included 2995 emerging adults (mean ages = 18 to 24 years across six waves of data collection; 54% female) who provided data on sleep dimensions (quality, duration, and social jetlag) and frequency and consequences of alcohol and cannabis use. Longitudinal latent class analysis (LLCA) models characterized participants according to the three sleep dimensions. Latent growth models examined trajectories of frequency and consequences of alcohol or cannabis use over time among emergent sleep classes, with and without controlling for covariates. RESULTS LLCA models identified four sleep classes: good sleepers (n = 451; 15.2%); untroubled poor sleepers (n = 1024; 34.2%); troubled, moderately good sleepers (n = 1056; 35.3%); and suboptimal sleepers (n = 460; 15.4%). Good sleepers reported significantly lower levels of alcohol or cannabis use and consequences, and less of an increase in alcohol consequences as compared to suboptimal sleepers. CONCLUSIONS Persistent poor sleep health was associated with higher levels of alcohol and cannabis use and consequences, and greater increases in alcohol-related consequences during the transition from late adolescence to emerging adulthood. Findings have important clinical implications, highlighting that addressing multi-dimensional sleep health may be an important, novel target of intervention to reduce substance use frequency and consequences.
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Affiliation(s)
- Wendy M Troxel
- RAND Corporation, Behavioral and Policy Sciences, 4501 Fifth Avenue, Suite 600, Pittsburgh, PA 15213, USA.
| | - Anthony Rodriguez
- RAND Corporation, Behavioral and Policy Sciences, 20 Park Plaza #920, Boston, MA 02116, USA.
| | - Rachana Seelam
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA.
| | - Lu Dong
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA.
| | - Lilian G Perez
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA.
| | - Joan S Tucker
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA.
| | - Daniel Siconolfi
- RAND Corporation, Behavioral and Policy Sciences, 4501 Fifth Avenue, Suite 600, Pittsburgh, PA 15213, USA.
| | - Elizabeth J D'Amico
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA.
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Hummer JF, Tucker JS, Rodriguez A, Davis JP, D’Amico EJ. A Longitudinal Study of Alcohol and Cannabis Use in Young Adulthood: Exploring Racial and Ethnic Differences in the Effects of Peer and Parental Influences From Middle Adolescence. J Stud Alcohol Drugs 2022; 83:684-694. [PMID: 36136439 PMCID: PMC9523756 DOI: 10.15288/jsad.21-00050] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 02/04/2022] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE This study assessed how changes from middle adolescence to young adulthood in peer and parental influences relate to frequency of alcohol and cannabis use in young adulthood and evaluated the differences between three racial/ethnic groups. METHOD The analytic sample (n = 2,808; 52.9% female; 54% Hispanic, 22.9% White, 23.1% Asian/Pacific Islander) was derived from a longitudinal cohort initially recruited from 16 middle schools in Southern California who completed annual surveys. Data were collected across six waves beginning in Spring 2013 (mean age = 16.2) through Spring 2019 (mean age = 21.6). RESULTS Multigroup latent growth models revealed consistent increases during adolescence and young adulthood in perceived peer and parental approval of alcohol and cannabis and in the amount of time spent around peers who used these substances. After we controlled for prior use, these increases related to alcohol and cannabis use at age 21, with few exceptions. The time spent around peers most strongly influenced later cannabis use for Hispanic young adults, whereas the influence of peer approval on later alcohol and cannabis use, and parental approval on later alcohol use, was strongest among White young adults. CONCLUSIONS The frequency of alcohol and cannabis use in young adulthood was shaped, in part, from increases in direct and indirect peer influence and perceived parental approval of substance use across two important developmental periods. The findings highlight the importance of early and sustained intervention efforts targeting these social influences, especially among White adolescents, which may potentially decrease alcohol and cannabis use as youth enter young adulthood.
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Affiliation(s)
| | | | | | - Jordan P. Davis
- University of Southern California (USC), Suzanne Dworak-Peck School of Social Work, Los Angeles, California
- USC Institute for Addiction Science, Los Angeles, California
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Tucker JS, Rodriguez A, Davis JP, D'Amico EJ. Cross-Lagged Associations of Insecure Attachment Style, Alcohol Use, and Sexual Behavior During Emerging Adulthood. ARCHIVES OF SEXUAL BEHAVIOR 2022; 51:1521-1530. [PMID: 35022912 PMCID: PMC10402343 DOI: 10.1007/s10508-021-02106-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 06/14/2023]
Abstract
Insecure romantic attachment style has been associated with greater substance use and higher risk sexual behavior, but the temporal nature of these associations is not well-understood. This study examined whether having a more insecure attachment style was associated with greater engagement in higher-risk sexual behavior over time and, if so, whether this was mediated by more frequent alcohol use. We used three annual waves of survey data from a diverse California cohort (N = 2371) who were assessed from ages 19 to 21-22 years. Separate cross-lagged models examined temporal associations of insecure romantic attachment style (anxious and avoidant), past month alcohol use frequency, and sexual behavior (number of sex partners, condomless sex with casual and steady partners). Attachment anxiety was not directly associated with sexual behavior. Rather, a consistent pattern across waves showed that greater attachment anxiety was associated with more frequent alcohol use at the next wave, which, in turn, was associated with having more sex partners and condomless sex with casual and steady partners one year later. In contrast, greater attachment avoidance was directly associated with having fewer sex partners, and its associations with condomless sex differed across partner type and assessment waves. Attachment avoidance was unrelated to alcohol use frequency. Results indicated that both anxious and avoidant attachment styles were associated with higher-risk sexual behavior, but in different ways and through different mechanisms. Future research may want to examine whether the effectiveness of sexual risk reduction programs for young people is enhanced by discussing attachment style and tailoring the curriculum accordingly.
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Affiliation(s)
- Joan S Tucker
- RAND Corporation, 1776 Main Street, Santa Monica, CA, 90407, USA.
| | | | - Jordan P Davis
- Suzanne Dworak-Peck School of Social Work, USC Center for Artificial Intelligence in Society, USC Center for Mindfulness Science, USC Institute for Addiction Science, University of Southern California, Los Angeles, CA, USA
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Shih RA, Tucker JS, Pedersen ER, Seelam R, Dunbar MS, Kofner A, Firth C, D'Amico EJ. Density of medical and recreational cannabis outlets: racial/ethnic differences in the associations with young adult intentions to use cannabis, e-cigarettes, and cannabis mixed with tobacco/nicotine. J Cannabis Res 2021; 3:28. [PMID: 34243820 PMCID: PMC8272320 DOI: 10.1186/s42238-021-00084-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 06/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Differences in access to medical versus recreational cannabis outlets and their associations with intentions to use cannabis have not yet been examined among young adults. This study compares the associations between densities of medical versus recreational cannabis outlets and young adults' intentions to use cannabis, electronic cigarettes, and cannabis mixed with tobacco/nicotine products. Racial/ethnic differences in these associations were examined. METHODS Young adults ages 18-23 (mean age = 20.9) in Los Angeles County were surveyed online in 2018 after the legalization of recreational cannabis (n = 604). Multiple linear regressions were estimated for the entire sample and stratified by race/ethnicity. Outcomes were intentions to use cannabis, electronic cigarettes, and cannabis mixed with tobacco/nicotine in the next 6 months. Density was measured as the number of medical cannabis dispensaries (MCDs), recreational cannabis retailers (RCRs), and outlets of any type within 5 miles of respondents' homes. RESULTS Living near more outlets of any type was not significantly associated with intentions to use in the full sample, adjusting for individual- and neighborhood-level characteristics. However, race/ethnicity-stratified models indicated that living near more outlets of any type and more RCRs were significantly associated with stronger co-use intentions among white young adults. Higher MCD density was marginally associated with stronger co-use intentions among Asian young adults. However, higher MCD density was significantly associated with lower intentions to use e-cigarettes among Hispanic young adults. CONCLUSIONS The results suggest racial/ethnic differences in the impact of living near cannabis outlets on intentions to use. Prevention efforts targeting young adults who live near more cannabis outlets may be especially beneficial for white and Asian young adults.
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Affiliation(s)
- Regina A Shih
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90407, USA.
| | - Joan S Tucker
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90407, USA
| | - Eric R Pedersen
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90407, USA
- Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, Los Angeles, USA
| | - Rachana Seelam
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90407, USA
| | | | - Aaron Kofner
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90407, USA
| | - Caislin Firth
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90407, USA
- Faculty of Health Sciences, Simon Fraser University, Burnaby, B.C., Canada
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Hummer JF, Seelam R, Pedersen ER, Tucker JS, Klein DJ, D'Amico EJ. Why Young Adults Obtain a Medical Marijuana Card: Associations with Health Symptoms and Heaviness of Use. ACTA ACUST UNITED AC 2021; 4:27-39. [PMID: 34179729 PMCID: PMC8232346 DOI: 10.26828/cannabis/2021.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Objective. Prior studies documenting more frequent and problematic use among young adults who have acquired medical marijuana (MM) cards have broadly compared those who use medically to those who use recreationally. Gaining a better picture of how health symptoms and problematic use vary both within those who have a MM card for specific condition domains and between those who do not have a MM card can provide key information for medical practitioners and states interested in adopting or updating MM policies. Method. The current study categorizes young adults authorized to use MM into three mutually exclusive groups based on endorsements of qualifying conditions: (1) Physical Health only (e.g., AIDS, arthritis, cancer; n = 34); (2) Behavioral Health only (e.g., anxiety, depression, sleep problems; n = 75); and (3) Multiple Conditions (a physical and behavioral health condition; n = 71). Multiple and logistic regression models examined differences across marijuana use, problems, mental health, physical health, and sleep quality for MM condition categories and for those that only use marijuana recreationally (n = 1,015). Results. After adjusting for socio-demographic factors (age, sex, sexual orientation, educational status, employment status, race/ethnicity, mother’s education, prior intervention involvement in youth), MM card holders, particularly those with physical health or multiple health conditions, reported heavier, more frequent, and more problematic and risky marijuana use compared to those using recreationally. Despite this pattern, those in different MM condition categories were generally not found to be more symptomatic in domains of mental or physical health relevant to their respective conditions, compared to different category groups or to those using recreationally. Conclusions. Findings emphasize the importance of providers conducting a careful assessment of reasons for needing a card, along with use, to reduce potential harms while adding credibility to a medical movement with genuine promise of relief for many medical conditions.
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Affiliation(s)
- Justin F Hummer
- RAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407
| | - Rachana Seelam
- RAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407
| | - Eric R Pedersen
- RAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407.,University of Southern California, Keck School of Medicine, Department of Psychiatry and Behavioral Sciences, 2250 Alcazar Street, Suite 2200, Los Angeles, CA 90033
| | - Joan S Tucker
- RAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407
| | - David J Klein
- RAND Corporation, 1776 Main Street, PO Box 2138, Santa Monica, CA 90407
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Troxel WM, Rodriguez A, Seelam R, Tucker JS, Shih RA, Dong L, D'Amico EJ. Longitudinal associations of sleep problems with alcohol and cannabis use from adolescence to emerging adulthood. Sleep 2021; 44:6245112. [PMID: 33884430 PMCID: PMC8561242 DOI: 10.1093/sleep/zsab102] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 03/09/2021] [Indexed: 11/13/2022] Open
Abstract
STUDY OBJECTIVES This study examined longitudinal associations of sleep problems with alcohol and cannabis use across six annual waves of data from adolescence to emerging adulthood. METHODS Participants were 3,265 youth from California (ages 16 to 22 across waves). At each wave, past-month alcohol use and cannabis use, mental health, and several dimensions of sleep health (i.e., social jetlag, bedtimes, time in bed, trouble sleeping) were assessed via questionnaire. Parallel process latent growth models examined the association between sleep and alcohol or cannabis use trajectories and the role of mental health in contributing to such trajectories. RESULTS Smaller declines in social jetlag (r = .11, p = .04), increases in trouble sleeping (r = .18, p < .01), and later weekday (r = .16, p < .01) and weekend bedtimes (r = .25, p < .01) were associated with increases in likelihood of alcohol use over time. Declines in weekend TIB (r = -.13, p = .03), as well as increases in weekday TIB (r = 0.11, p = 0.04) and later weekday (r = .18, p < .01) and weekend bedtime (r = .24, p < .01), were associated with increases in likelihood of cannabis use over time. Most associations remained significant after controlling for time-varying mental health symptoms. CONCLUSIONS Trajectories of sleep health were associated with trajectories of alcohol and cannabis use during late adolescence to emerging adulthood. Improving sleep is an important target for intervention efforts to reduce the risk of substance use during this critical developmental transition.
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Affiliation(s)
- Wendy M Troxel
- RAND Corporation, Behavioral and Policy Sciences, 4501 Fifth Avenue, Suite 600, Pittsburgh, PA 15213, USA
| | - Anthony Rodriguez
- RAND Corporation, Behavioral and Policy Sciences, 20 Park Plaza #920, Boston, MA 02116, USA
| | - Rachana Seelam
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA
| | - Joan S Tucker
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA
| | - Regina A Shih
- RAND Corporation, Behavioral and Policy Sciences 1200 South Hayes Street, Arlington, Virginia, 22202-5050, USA
| | - Lu Dong
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA
| | - Elizabeth J D'Amico
- RAND Corporation, Behavioral and Policy Sciences, 1776 Main Street, Santa Monica, CA 90407-2138, USA
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Dickerson DL, Parker J, Johnson CL, Brown RA, D'Amico EJ. Recruitment and retention in randomized controlled trials with urban American Indian/Alaska Native adolescents: Challenges and lessons learned. Clin Trials 2021; 18:83-91. [PMID: 33231130 PMCID: PMC7878293 DOI: 10.1177/1740774520971774] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Although the majority of American Indians/Alaska Natives reside in urban areas, there are very few randomized controlled trials analyzing culturally centered substance use prevention interventions for this population. METHODS We describe methods employed to recruit and retain urban American Indian/Alaska Native adolescents into a randomized controlled trial, which was focused on testing the potential benefits of a substance use prevention intervention for this population. We also report challenges encountered in recruitment and retention of participants and strategies employed addressing these challenges. Data collection occurred from August 2014 to October 2017. RESULTS We partnered with two community-based organizations in different cities in California. We utilized American Indian/Alaska Native recruiters from communities, placed flyers in community-based organizations, and asked organizations to post flyers on their web and social media sites. We also offered gift cards for participants. Our initial recruitment and retention model was moderately successful; however, we encountered five main challenges: (1) transportation, (2) increasing trust and interest, (3) adding research sites, (4) getting the word out about the project, and (5) getting youth to complete follow-up surveys. Strategies employed to overcome transportation challenges included shortening the number of sessions, offering sessions on both weekends and weekdays, and increasing bus tokens and transportation options. We hired more staff from American Indian/Alaska Native communities, added more research sites from our previously established relationships, and were more proactive in getting the word out on the project in American Indian/Alaska Native communities. We also utilized more field tracking and emailed and mailed survey invitations to reach more participants for their follow-up surveys. Because of our efforts, we were nearly able to reach our initial recruitment and retention goals. CONCLUSION Although our research team had previously established relationships with various urban American Indian/Alaska Native communities, we encountered various recruitment and retention challenges in our study. However, by identifying challenges and employing culturally appropriate strategies, we were able to collect valuable data on the potential effectiveness of a substance use prevention intervention for urban American Indian/Alaska Native adolescents. Findings from this study assist toward the development of potentially successful strategies to successfully recruit and retain urban American Indian/Alaska Native adolescents in randomized controlled trials.
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Affiliation(s)
- Daniel L Dickerson
- UCLA Integrated Substance Abuse Programs (ISAP), University of California Los Angeles, Los Angeles, CA, USA
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Chan WY, Rodriguez A, Shih RA, Tucker JS, Pedersen ER, Seelam R, D'Amico EJ. How do college students use their free time? A latent profile analysis of leisure activities and substance use. LEISURE SCIENCES 2020; 45:331-350. [PMID: 37346392 PMCID: PMC10281707 DOI: 10.1080/01490400.2020.1829520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 08/06/2020] [Accepted: 09/05/2020] [Indexed: 06/23/2023]
Abstract
College is a critical period of transition to independence and the substantial amount of time that students have to participate in leisure activities may be conducive to substance use. However, little is known about the associations between leisure activities and substance use over time, or whether these associations differ by residential status (i.e., living with parents vs. on their own). Using latent profile analysis, this study found six distinct profiles of leisure activity participation in a racially/ethnically diverse sample of college students (N=1,207). Overall, profiles with medium levels of leisure activity participation were associated with more alcohol use, heavy drinking, and marijuana use one year later; whereas profiles with the lowest levels of leisure activity participation were associated with more cigarette use one year later. Identifying mechanisms through which leisure activities influence substance use can help inform prevention efforts to either reduce risks associated with participation or support protective effects.
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Tucker JS, D'Amico EJ, Pedersen ER, Rodriguez A, Garvey R. Study protocol for a group-based motivational interviewing brief intervention to reduce substance use and sexual risk behavior among young adults experiencing homelessness. Addict Sci Clin Pract 2020; 15:26. [PMID: 32723349 PMCID: PMC7390162 DOI: 10.1186/s13722-020-00201-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/17/2020] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Young people experiencing homelessness have alarmingly high rates of alcohol and other drug (AOD) use, which is associated with sexual risk behaviors such as unprotected sex, trading sex, and sex with multiple casual partners. Few risk reduction programs for this population have been developed and rigorously evaluated, particularly those that address both of these interrelated behaviors, use a collaborative and non-judgmental approach, and are feasible to deliver in settings where homeless young people seek services. This paper describes the protocol of a study evaluating a four-session Motivational Interviewing (MI)-based group risk reduction intervention for this population. The protocol has been shown to be efficacious in pilot work over 3 months with 200 homeless young adults [1]. The current study seeks to refine the intervention protocol and evaluate the program on a larger scale. METHODS/DESIGN In a cluster-cross-over randomized controlled trial, 18-25 year olds will receive the AWARE risk reduction program (n = 200) or standard care (n = 200) at one of three drop-in centers serving homeless youth in the Los Angeles area. We will evaluate intervention effects on primary outcomes of AOD use and sexual risk behavior, as well as secondary outcomes of health-related quality of life and social stability, over a 12-month period. DISCUSSION This project has the potential to fill a significant gap in prevention services by demonstrating that a brief intervention, feasible to deliver within settings where young people experiencing homelessness typically seeks services, can significantly reduce the interrelated problems of AOD use and sexual risk behavior. Trial registration ClinicalTrials.gov Identifier: NCT03735784. Registered November 18, 2018, https://clinicaltrials.gov/ct2/show/record/NCT03735784 (retrospectively registered).
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Affiliation(s)
- Joan S Tucker
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States.
| | - Elizabeth J D'Amico
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States
| | - Eric R Pedersen
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States.,Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, 250 Alcazar Street, Suite 2200, Los Angeles, CA, 90033, United States
| | - Anthony Rodriguez
- RAND Corporation, 20 Park Plaza, Suite 920, Boston, MA, 02116, United States
| | - Rick Garvey
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States
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Shih RA, Rodriguez A, Parast L, Pedersen ER, Tucker JS, Troxel WM, Kraus L, Davis JP, D'Amico EJ. Associations between young adult marijuana outcomes and availability of medical marijuana dispensaries and storefront signage. Addiction 2019; 114:2162-2170. [PMID: 31183908 DOI: 10.1111/add.14711] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/07/2018] [Accepted: 05/31/2019] [Indexed: 02/01/2023]
Abstract
AIMS We investigated associations between the density of medical marijuana dispensaries (MMDs) around young adults' homes and marijuana use outcomes. DESIGN Secondary data analysis. SETTING Los Angeles County, CA, USA. PARTICIPANTS A total of 1887 participants aged 18-22 years, surveyed online in 2016-17. MEASUREMENTS Outcomes were past-month marijuana use (number of days used, number of times each day), positive expectancies and perceived peer use. Density was measured as the total number of MMDs and number of MMDs with storefront signage indicative of marijuana sales, within 4 miles of respondents' homes. FINDINGS Eighty-four per cent of respondents had 10 or more MMDs within 4 miles of their homes. Multiple linear regression analyses that adjusted for individual-level socio-demographic characteristics and neighborhood socio-economic status indicated that living near a higher number of MMDs was associated with greater number of days used in the past month [β = 0.025; 95% confidence interval (CI) = 0.001, 0.049; P = 0.04] and higher positive marijuana expectancies (β = 0.003; 95% CI = 0.001, 0.007; P = 0.04). Living near more MMDs with storefront signage had a four- to six-fold larger effect on number of times used per day and positive expectancies, respectively, compared with associations with the total MMD count. Adjusting for medical marijuana card ownership attenuated the association with number of days used in the past month and positive expectancies, and an unexpected association emerged between higher MMD density and fewer number of times used each day (β = -0.005; 95% CI = -0.009, -0.001; P = 0.03). CONCLUSIONS For young adults in Los Angeles County, living near more medical marijuana dispensaries (MMDs) is positively associated with more frequent use of marijuana within the past month and greater expectations of marijuana's positive benefits. MMDs with signage show stronger associations with number of times used each day and positive expectancies.
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Pedersen ER, Tucker JS, Seelam R, Rodriguez A, D’Amico EJ. Factors Associated With Acquiring a Medical Marijuana Card: A Longitudinal Examination of Young Adults in California. J Stud Alcohol Drugs 2019; 80:687-692. [PMID: 31790359 PMCID: PMC6900992 DOI: 10.15288/jsad.2019.80.687] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/27/2019] [Indexed: 12/10/2023] Open
Abstract
OBJECTIVE Studies have documented greater risk for heavy marijuana use and consequences among adolescents and young adults who have acquired medical marijuana cards. With the cards, they are enrolled in their state's medical marijuana program and granted access to medical marijuana dispensaries. It is unknown, however, what factors influence young people to acquire medical marijuana cards, such as whether they seek out medical marijuana cards for the mental and physical health concerns that marijuana is targeted to address or whether they seek out medical marijuana cards solely because they are heavier users. METHOD There were 264 participants (54% female) in the current study, which used longitudinal data (Time 1 and Time 2, 1 year later) to compare young adult marijuana users who did not have a medical marijuana card at either time point (n = 215) with marijuana users who reported acquiring a medical marijuana card by Time 2 (n = 49; 19% of the sample). We used logistic regression to predict participants' acquisition of a medical marijuana card at Time 2 from Time 1 demographic factors, mental health symptoms of anxiety and depression, reports of poor physical health and symptoms, and frequency of use. RESULTS Analyses indicated that young adults who were male (odds ratio = 2.91) and who reported more frequent marijuana use (odds ratio = 1.07) were at greater odds of acquiring a medical marijuana card over the study period. None of the mental or physical health concerns predicted card acquisition. CONCLUSIONS Findings suggest that more frequent use, not necessarily mental and physical health concerns, is a main influence on medical marijuana card acquisition.
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Pedersen ER, Tucker JS, Seelam R, Rodriguez A, D’Amico EJ. Factors Associated With Acquiring a Medical Marijuana Card: A Longitudinal Examination of Young Adults in California. J Stud Alcohol Drugs 2019; 80:687-692. [PMID: 31790359 PMCID: PMC6900992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE Studies have documented greater risk for heavy marijuana use and consequences among adolescents and young adults who have acquired medical marijuana cards. With the cards, they are enrolled in their state's medical marijuana program and granted access to medical marijuana dispensaries. It is unknown, however, what factors influence young people to acquire medical marijuana cards, such as whether they seek out medical marijuana cards for the mental and physical health concerns that marijuana is targeted to address or whether they seek out medical marijuana cards solely because they are heavier users. METHOD There were 264 participants (54% female) in the current study, which used longitudinal data (Time 1 and Time 2, 1 year later) to compare young adult marijuana users who did not have a medical marijuana card at either time point (n = 215) with marijuana users who reported acquiring a medical marijuana card by Time 2 (n = 49; 19% of the sample). We used logistic regression to predict participants' acquisition of a medical marijuana card at Time 2 from Time 1 demographic factors, mental health symptoms of anxiety and depression, reports of poor physical health and symptoms, and frequency of use. RESULTS Analyses indicated that young adults who were male (odds ratio = 2.91) and who reported more frequent marijuana use (odds ratio = 1.07) were at greater odds of acquiring a medical marijuana card over the study period. None of the mental or physical health concerns predicted card acquisition. CONCLUSIONS Findings suggest that more frequent use, not necessarily mental and physical health concerns, is a main influence on medical marijuana card acquisition.
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Affiliation(s)
- Eric R. Pedersen
- RAND Corporation, Santa Monica, California,Correspondence may be sent to Eric R. Pedersen at RAND Corporation, 1776 Main Street, P.O. Box 2138, Santa Monica, CA 90407-2138, or via email at:
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Tucker JS, Shih RA, Pedersen ER, Seelam R, D'Amico EJ. Associations of Alcohol and Marijuana Use With Condom Use Among Young Adults: The Moderating Role of Partner Type. JOURNAL OF SEX RESEARCH 2019; 56:957-964. [PMID: 30028212 PMCID: PMC6339847 DOI: 10.1080/00224499.2018.1493571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study used multiple levels of analysis to examine associations of alcohol and marijuana (AM) use with condom use, including the moderating role of partner type, in a general sample of 754 sexually active young adults (mean age = 18.6, SD = 0.63; 77% non-White). Multivariable models examined associations over the past 30 days (global) and at the most recent sexual event (event specific). Over the past 30 days, participants who had a recent casual partner and used both substances reported a higher proportion of condom-protected sexual events during this period compared to AM nonusers, whereas those who had a recent steady partner and used alcohol, marijuana, or both substances reported a lower proportion of condom-protected sexual events compared to AM nonusers. At the most recent sexual event, participants who used both substances were four times more likely than AM nonusers to have condom-protected sex if the event involved a casual partner; however, there were no significant associations if the event involved a steady partner. Marijuana use, particularly combined with alcohol use, deserves greater attention in the context of condom use. Future research should consider different levels of analysis and partner types to fully understand these complex associations.
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Troxel WM, Rodriguez A, Seelam R, Tucker JS, Shih RA, D'Amico EJ. Associations of longitudinal sleep trajectories with risky sexual behavior during late adolescence. Health Psychol 2019; 38:716-726. [PMID: 31157533 DOI: 10.1037/hea0000753] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The current study examines longitudinal sleep patterns in relation to risky sexual behaviors in a racially/ethnically diverse sample of adolescents. METHOD The sample comprises 1,850 youth (mean age at first wave = 16.21; 57% female). Sleep duration, sleep variability (difference between weekend and weekday sleep duration), and sleep quality were collected over four annual assessments from 2013 to 2017. Risky sexual behaviors (i.e., sex without condom use or sex after using drugs or alcohol) were examined at the fourth follow-up assessment when youth were 19 years old. Longitudinal latent class analysis characterized patterns of individual sleep dimensions over time, as well as the combination of sleep dimensions, and examined how emergent sleep classes associated with subsequent risky sexual behavior, after adjustment for sociodemographics and mental health. RESULTS After covariate adjustment, persistent "short" weekend sleepers were 2.2 times more likely to engage in risky sexual behaviors, compared to youth with sufficient weekend sleep duration. Contrary to expectations, adolescents with more consistent weekend/weekday sleep were 1.6-2 times more likely to engage in risky sexual behaviors, compared to those with greater variability; however, lack of variability may be an indicator of chronic insufficient sleep, both weekdays and weekends. There were no significant differences in risky sexual behavior according to classes of weekday sleep duration or quality. In the combined class model, those with persistently short and poor-quality sleep were at marginally greater risk for engaging in risky sexual behaviors. CONCLUSION Insufficient sleep in adolescents may increase risk for sexual risk-taking and may set the stage for accelerated health risk trajectories into adulthood. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Chinman M, Ebener P, Malone PS, Cannon J, D'Amico EJ, Acosta J. Testing implementation support for evidence-based programs in community settings: a replication cluster-randomized trial of Getting To Outcomes®. Implement Sci 2018; 13:131. [PMID: 30348227 PMCID: PMC6196461 DOI: 10.1186/s13012-018-0825-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 10/15/2018] [Indexed: 11/10/2022] Open
Abstract
Background Community organizations can have difficulty implementing evidence-based prevention programs. More research is needed on implementation support interventions designed to help these organizations implement programs with quality. Methods Preparing to Run Effective Programs (PREP) is a randomized controlled trial testing Getting To Outcomes (GTO), a 2-year implementation support intervention. It compares 15 Boys and Girls Club sites implementing CHOICE (control group), a five-session evidence-based alcohol and drug prevention program, with 14 similar sites implementing CHOICE supported by GTO (intervention group). PREP replicates a previous GTO study that had the same design, but featured a teen pregnancy prevention program instead. All sites received typical CHOICE training. Fourteen intervention sites received GTO manuals, training, and onsite technical assistance to help practitioners complete implementation best practices specified by GTO (i.e., GTO steps). During the first year, technical assistance providers helped the intervention group adopt, plan, and deliver CHOICE. Then, this group was trained on evaluation and quality improvement steps of GTO using feedback reports summarizing their own data, which yielded revised plans for subsequent implementation of CHOICE. This paper presents results regarding GTO’s impact on CHOICE fidelity (adherence, quality of delivery, dosage) and the proximal outcomes of the youth participants (aged 10–14)—attitudes and intentions regarding cigarettes, alcohol, and marijuana use. Fidelity was assessed at all sites by observer ratings and attendance logs. Proximal outcomes were assessed via survey at baseline, 3, and 6 months. Results After 1 year, fidelity and proximal outcomes were similar between Intervention and control groups. After 2 years (which included GTO quality improvement activities that took place between years 1 and 2), intervention sites had higher ratings of CHOICE adherence and quality of delivery (dosage remained similar). Proximal outcomes did not differ between groups in either year, although there was universally high endorsement of prosocial responses to those outcomes from the start. Conclusions Findings suggest that systematic implementation support provided by GTO can help community organizations achieve better fidelity. Findings replicate the implementation results from a previous GTO study using the same design, but with a different evidence-based program and different fidelity measures. Although proximal outcomes did not change, in large part due to ceiling effects, the implementation findings suggest GTO can support a variety of programs. Trial registration This project is registered at ClinicalTrials.gov with number NCT02135991. The trial was first registered on May 12, 2014.
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Affiliation(s)
- Matthew Chinman
- RAND Corporation, 4570 Fifth Avenue, Pittsburgh, PA, 15213, USA.
| | - Patricia Ebener
- RAND Corporation, 4570 Fifth Avenue, Pittsburgh, PA, 15213, USA
| | | | - Jill Cannon
- RAND Corporation, 4570 Fifth Avenue, Pittsburgh, PA, 15213, USA
| | | | - Joie Acosta
- RAND Corporation, 4570 Fifth Avenue, Pittsburgh, PA, 15213, USA
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Individual, peer, and family factor modification of neighborhood-level effects on adolescent alcohol, cigarette, e-cigarette, and marijuana use. Drug Alcohol Depend 2017; 180:76-85. [PMID: 28886395 PMCID: PMC5693315 DOI: 10.1016/j.drugalcdep.2017.07.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 07/06/2017] [Accepted: 07/12/2017] [Indexed: 01/05/2023]
Abstract
BACKGROUND Neighborhood factors reported subjectively by residents and measured objectively at the census tract are both associated with adolescent alcohol, tobacco (cigarette and electronic cigarette), and other drug (marijuana) (ATOD) use. Less clear is how these neighborhood factors are longitudinally associated with each substance. Equivocal findings may be due to lack of consideration of individual, peer, and family effect modifiers, which could help adolescents overcome exposure to stressful neighborhood environments. METHODS We used multivariate logistic regressions with interaction terms to test whether parental monitoring, resistance self-efficacy (RSE) and being around peers who use ATOD modified the association between four subjective and objective neighborhood measures and odds of using each substance measured one year later among 2539 high school students and college freshmen originally recruited from middle schools in Southern California. RESULTS Census tract-level disadvantage was not longitudinally associated with ATOD use. However, perceptions of higher neighborhood disorganization, less social cohesion, and more neighborhood problems with alcohol and drug use were associated with higher odds of ATOD use. Higher RSE and weaker affiliations with peers who use ATOD consistently buffered negative effects of neighborhood disorganization and neighborhood problems with alcohol and drugs on past year ATOD use. CONCLUSIONS Community-level programs that increase social cohesion among neighbors, neighborhood monitoring of deviant behaviors, and better policing of open drug selling may prevent ATOD use. Programs should also target RSE and minimize affiliations with peers who use ATOD, which could reduce the magnitude of the association with ATOD, even for adolescents living in the most at-risk neighborhoods.
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Dickerson DL, Brown RA, Johnson CL, Schweigman K, D'Amico EJ. Integrating Motivational Interviewing and Traditional Practices to Address Alcohol and Drug Use Among Urban American Indian/Alaska Native Youth. J Subst Abuse Treat 2016; 65:26-35. [PMID: 26306776 PMCID: PMC4732924 DOI: 10.1016/j.jsat.2015.06.023] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 06/26/2015] [Accepted: 06/29/2015] [Indexed: 12/20/2022]
Abstract
American Indians/Alaska Natives (AI/AN) exhibit high levels of alcohol and drug (AOD) use and problems. Although approximately 70% of AI/ANs reside in urban areas, few culturally relevant AOD use programs targeting urban AI/AN youth exist. Furthermore, federally-funded studies focused on the integration of evidence-based treatments with AI/AN traditional practices are limited. The current study addresses a critical gap in the delivery of culturally appropriate AOD use programs for urban AI/AN youth, and outlines the development of a culturally tailored AOD program for urban AI/AN youth called Motivational Interviewing and Culture for Urban Native American Youth (MICUNAY). We conducted focus groups among urban AI/AN youth, providers, parents, and elders in two urban communities in northern and southern California aimed at 1) identifying challenges confronting urban AI/AN youth and 2) obtaining feedback on MICUNAY program content. Qualitative data were analyzed using Dedoose, a team-based qualitative and mixed methods analysis software platform. Findings highlight various challenges, including community stressors (e.g., gangs, violence), shortage of resources, cultural identity issues, and a high prevalence of AOD use within these urban communities. Regarding MICUNAY, urban AI/AN youth liked the collaborative nature of the motivational interviewing (MI) approach, especially with regard to eliciting their opinions and expressing their thoughts. Based on feedback from the youth, three AI/AN traditional practices (beading, AI/AN cooking, and prayer/sage ceremony) were chosen for the workshops. To our knowledge, MICUNAY is the first AOD use prevention intervention program for urban AI/AN youth that integrates evidence-based treatment with traditional practices. This program addresses an important gap in services for this underserved population.
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Affiliation(s)
- Daniel L Dickerson
- UCLA Integrated Substance Abuse Programs, Semel Institute for Neuroscience and Human Behavior David Geffen School of Medicine, 1640 Sepulveda Blvd., Suite 200, Los Angeles, CA, 90025
| | - Ryan A Brown
- RAND Corporation, 1776 Main St., Santa Monica, CA, 90401
| | | | - Kurt Schweigman
- Sacred Path Indigenous Wellness Center, Los Angeles, CA, 90017
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Tucker JS, Ewing B, Miles JNV, Shih RA, Pedersen ER, D'Amico EJ. Predictors and consequences of prescription drug misuse during middle school. Drug Alcohol Depend 2015; 156:254-260. [PMID: 26455553 PMCID: PMC4640892 DOI: 10.1016/j.drugalcdep.2015.09.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 09/16/2015] [Accepted: 09/16/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Non-medical prescription drug use (NMPDU) is a growing public health problem among adolescents. This is the first study to examine the correlates of early NMPDU initiation during middle school, and how early initiation is associated with four domains of functioning in high school (mental health, social, academic, and delinquency). METHODS Students initially in 6th-8th grades from 16 middle schools completed in-school surveys between 2008 and 2011 (Waves 1-5), and a web-based survey in 2013-2014 (Wave 6). We used discrete time survival analysis to assess predictors of initiation from Waves 1 to 5 based on students who provided NMPDU information at any of these waves (n=12,904), and regression analysis to examine high school outcomes associated with initiation based on a sample that was followed into high school, Wave 6 (n=2539). RESULTS Low resistance self-efficacy, family substance use, low parental respect, and offers of other substances from peers were consistently associated with NMPDU initiation throughout middle school. Further, perceiving that more of one's peers engaged in other substance use was associated with initiation at Wave 1 only. By high school, those students who initiated NMPDU during middle school reported lower social functioning, and more suspensions and fighting, compared to students who did not initiate NMPDU during middle school. CONCLUSION NMPDU initiation during middle school is associated with poorer social functioning and greater delinquency in high school. It is important for middle school prevention programs to address NMPDU. Such programs should focus on both family and peer influences, as well as strengthening resistance self-efficacy.
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Edelen MO, Tucker J, D'Amico E. Spreading the word: A process evaluation of a voluntary AOD prevention program. Am J Addict 2015; 24:315-22. [PMID: 25846206 DOI: 10.1111/ajad.12176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 09/18/2014] [Accepted: 10/14/2014] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Research on voluntary after-school alcohol and other drug (AOD) prevention programs is limited. It is important to increase understanding of students' motivation to attend these types of programs and their tendency to transfer program information to peers. This paper summarizes efforts to evaluate process information for CHOICE, a voluntary after-school AOD prevention program for middle-school youth. METHODS A survey administered to 1899 students aged 10-16 in seven schools assessed: (1) why students choose to attend CHOICE (2) barriers to attendance; and (3) how program information is disseminated to non-participants. Frequencies of responses from participants and non-participants were compared. RESULTS Participants were motivated by several features, most notably, the demeanor of the group leaders and enjoyable curriculum content. Barriers to attendance were primarily logistic, but results also suggest that the promotion message should more effectively emphasize that CHOICE is appropriate for everyone. The majority of students knew about CHOICE, both through advertising and conversations with friends. Non-participants' detailed reports of what they heard from friends corresponded closely with what participants reported sharing. DISCUSSION AND CONCLUSIONS The use of dynamic group leaders is critical to engaging students in voluntary programs. Offering the program on different days of the week or at different times (e.g., before school) may improve attendance rates. Peer networks represent a critical pathway for prevention information that can help increase program impact. SCIENTIFIC SIGNIFICANCE These results can be used to inform modifications to existing voluntary after-school AOD prevention programs to obtain higher attendance rates and more widespread dissemination of the intervention message.
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D'Amico EJ, Tucker JS, Miles JNV, Zhou AJ, Shih RA, Green HD. Preventing alcohol use with a voluntary after-school program for middle school students: results from a cluster randomized controlled trial of CHOICE. PREVENTION SCIENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR PREVENTION RESEARCH 2012; 13:415-25. [PMID: 22311178 DOI: 10.1007/s11121-011-0269-7] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
There are many mandated school-based programs to prevent adolescent alcohol and drug (AOD) use, but few are voluntary and take place outside of class time. This cluster randomized controlled trial evaluates CHOICE, a voluntary after-school program for younger adolescents, which reduced both individual- and school-level alcohol use in a previous pilot study. We evaluated CHOICE with 9,528 students from 16 middle schools. The sample was 51% female; 54% Hispanic, 17% Asian, 15% white, 9% multiethnic and 3% African American. Fifteen percent of students attended CHOICE. All students completed surveys on alcohol beliefs and use at baseline and 6-7 months later. We conducted intention-to-treat (ITT) school-level analyses and propensity-matched attender analyses. Lifetime alcohol use in the ITT analysis (i.e., school level) achieved statistical significance, with an odds ratio (OR) of 0.70 and a NNT of 14.8. The NNT suggests that in a school where CHOICE was offered, 1 adolescent out of 15 was prevented from initiating alcohol use during this time period. Although not statistically significant (p = .20), results indicate that past month alcohol use was also lower in CHOICE schools (OR = 0.81; NNT = 45). Comparisons of attenders versus matched controls yielded results for lifetime use similar to school-wide effects (OR = 0.74 and NNT = 17.6). Initial results are promising and suggest that a voluntary after-school program that focuses specifically on AOD may be effective in deterring alcohol use among early adolescents; however, further research is needed as program effects were modest.
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Affiliation(s)
- Elizabeth J D'Amico
- RAND Corporation, 1776 Main St, PO Box 2138, Santa Monica, CA 90407-2138, USA.
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