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Balneaves LG, Hammond D, Turner S, Nickel N, Woodgate RL, Watling CZ. Youth and Young Adults' Knowledge and Perceptions of Risks and Benefits Regarding Cannabis Products: A Cross-Sectional Analysis of Over 1,700 Individuals. J Psychoactive Drugs 2024:1-10. [PMID: 38946663 DOI: 10.1080/02791072.2024.2371028] [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: 11/14/2023] [Accepted: 05/06/2024] [Indexed: 07/02/2024]
Abstract
Canada legalized the use of non-medical cannabis in 2018. This study examines youth and young adults' knowledge and perceptions of harms, benefits, and education around cannabis use since legalization. An online survey was completed by a convenience sample of 1,759 individuals aged 12-25 years living in Manitoba, Canada. Most participants (n = 1,525, 86.7%) reported receiving education on the potential effects/harms related to cannabis; the most common topics included driving and cannabis use (79.9%), the mental harms of cannabis (67.4%), and addiction and dependency (66.3%). Youth who reported using cannabis more than once (n = 1,203) were more knowledgeable about the effects of cannabis than youth who never used cannabis or used cannabis once (n = 580; mean score: 6.6 versus 5.7 out of 8, respectively; p < .001). Vaping cannabis oil was perceived as the most harmful cannabis product among all participants. Among participants with experience using cannabis, the most frequently reported benefits were relaxation, improved sleep, and enhanced enjoyment of food/music. Half of the participants reported ever being in a car with someone driving high, of which, 40% of these participants reported doing so in the last 30 days. Future tailored education is needed to address knowledge related to cannabis use among youth and young adults who use and do not use cannabis.
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Affiliation(s)
- Lynda G Balneaves
- College of Nursing, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - David Hammond
- School of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada
| | - Shelley Turner
- Ekosi Health Centre, Winnipeg, MB, Canada
- Department of Family Medicine, Rady Faculty of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Nathan Nickel
- Community Health Sciences, Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, MB, Canada
| | - Roberta L Woodgate
- College of Nursing, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Cody Z Watling
- College of Nursing, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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Gohari MR, Patte KA, Elton-Marshall T, Cole A, Turcotte-Tremblay AM, Bélanger R, Leatherdale ST. The association between single and dual use of cannabis and alcohol and driving under the influence and riding with an impaired driver in a large sample of Canadian adolescents. TRAFFIC INJURY PREVENTION 2024; 25:765-773. [PMID: 38656911 DOI: 10.1080/15389588.2024.2342571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/08/2024] [Indexed: 04/26/2024]
Abstract
OBJECTIVE Dual use of cannabis and alcohol has increased in adolescents, but limited research has examined how it relates to impaired driving or riding with an impaired driver (IDR) compared to single substance use. This study aimed to examine the odds of alcohol- and/or cannabis-IDR among adolescents based on their use of alcohol and/or cannabis, and whether associations differed by gender and age. METHODS Cross-sectional survey data were used from a sample of 69,621 students attending 182 Canadian secondary schools in the 2021/22 school year. Multilevel logistic regression estimated the odds of exclusive alcohol-IDR, exclusive cannabis-IDR, and both alcohol and cannabis IDR (alcohol-cannabis-IDR). Substance use interactions with gender and age were tested. RESULTS Overall, 14.7% of participants reported IDR; 7.5% reported exclusive alcohol-IDR, 3.2% reported exclusive cannabis-IDR, 4.0% reported alcohol-cannabis-IDR, and 7.4% were unsure if they had experienced IDR. The prevalence of IDR varied across substance use groups, 8.0% among nonuse, 21.9% among alcohol-only use, 35.9% among cannabis-only use, and 49.6% among dual use groups. Gender diverse, older, and students with lower socioeconomic status exhibited a higher likelihood of reporting alcohol-cannabis-IDR. Dual use was significantly associated with 9.5 times higher odds of alcohol-cannabis-IDR compared to alcohol-only use, and 3.0 times higher odds compared to cannabis-only use. Dual use was also associated with an increased likelihood of either alcohol- or cannabis-IDR. CONCLUSIONS This study highlights that all students, regardless of substance use, are at risk of IDR, but students engaged in dual use of alcohol and cannabis face an elevated risk compared to both peers who do not use substances and those who use only a single substance. These findings emphasize the importance of targeted interventions that address the risks associated with IDR.
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Affiliation(s)
- Mahmood R Gohari
- School of Public Health Sciences, University of Waterloo, Waterloo, Canada
| | - Karen A Patte
- Faculty of Applied Health Sciences, Brock University, St. Catharines, Canada
| | - Tara Elton-Marshall
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Adam Cole
- Faculty of Health Sciences, Ontario Tech University, Oshawa, Canada
| | - Anne-Marie Turcotte-Tremblay
- VITAM, Centre de recherche en santé durable - Université Laval, CIUSSS de la Capitale-Nationale, Québec, Canada
- Département de pédiatrie, Faculté de médecine, Université Laval, Québec, Canada
| | - Richard Bélanger
- Département de pédiatrie, Faculté de médecine, Université Laval, Québec, Canada
- Faculté des sciences infirmières, Université Laval, Québec, Canada
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Davis W, Miller BP, Amlung M. Perceptions and Attitudes Related to Driving after Cannabis Use in Canadian and US Adults. SUBSTANCE USE & ADDICTION JOURNAL 2024; 45:114-123. [PMID: 38258863 DOI: 10.1177/29767342231208521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
BACKGROUND This study examined the risk perceptions related to driving after cannabis use (DACU) among Canadian and US adults who used cannabis in the past six months. METHODS Perceptions of danger, normative beliefs, perceived likelihood of negative consequences, and other driving-related variables were collected via online surveys in Canadian (n = 158; 50.0% female, 84.8% White, mean age = 32.73 years [SD = 10.61]) and US participants (n = 678; 50.9% female, 73.6% White, mean age = 33.85 years [SD = 10.12]). Driving cognitions and DACU quantity/frequency were compared between samples using univariate analyses of variance, and Spearman's (ρ) correlations were performed to examine associations between driving cognitions and DACU quantity/frequency. RESULTS The two samples did not significantly differ in self-reported level of cannabis use, lifetime quantity of DACU, or the number of times they drove within two hours of cannabis use in the past three months (Ps > .12). Compared to US participants, Canadians perceived driving within two hours of cannabis use as more dangerous (P < 0.001, ηp2 = 0.013) and reported more of their friends would disapprove of DACU (P = 0.03, ηp2 = 0.006). There were no differences in the number of friends who would refuse to ride with a driver who had used cannabis (P = 0.15) or the perceived likelihood of negative consequences (Ps > 0.07). More favorable perceptions were significantly correlated with greater lifetime DACU and driving within two hours of use (ρ = 0.25-0.53, Ps < 0.01). CONCLUSIONS These findings reveal differences in distal risk factors for DACU between Canada and the US and may inform prevention efforts focusing on perceptions of risk and social acceptance of DACU.
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Affiliation(s)
- William Davis
- Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, KS, USA
- Behavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Brandon P Miller
- Department of Applied Behavioral Science, University of Kansas, Lawrence, KS, USA
| | - Michael Amlung
- Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, KS, USA
- Department of Applied Behavioral Science, University of Kansas, Lawrence, KS, USA
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Brubacher JR, Chan H, Erdelyi S, Yuan Y, Daoust R, Vaillancourt C, Rowe B, Lee J, Mercier E, Atkinson P, Davis P, Clarke D, Taylor J, Macpherson A, Emond M, Al-Hakim D, Horwood C, Wishart I, Magee K, Rao J, Eppler J. High-'n'-dry? A comparison of cannabis and alcohol use in drivers presenting to hospital after a vehicular collision. Addiction 2023; 118:1507-1516. [PMID: 36898848 DOI: 10.1111/add.16186] [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: 10/09/2022] [Accepted: 02/20/2023] [Indexed: 03/12/2023]
Abstract
DESIGN This was a prospective observational study. BACKGROUND AND AIMS The characteristics of cannabis-involved motor vehicle collisions are poorly understood. This study of injured drivers identifies demographic and collision characteristics associated with high tetrahydrocannabinol (THC) concentrations. SETTING The study was conducted in 15 Canadian trauma centres between January 2018 and December 2021. CASES The cases (n = 6956) comprised injured drivers who required blood testing as part of routine trauma care. MEASUREMENTS We quantified whole blood THC and blood alcohol concentration (BAC) and recorded driver sex, age and postal code, time of crash, crash type and injury severity. We defined three driver groups: high THC (THC ≥ 5 ng/ml and BAC = 0), high alcohol (BAC ≥ 0.08% and THC = 0) and THC/BAC-negative (THC = 0 = BAC). We used logistic regression techniques to identify factors associated with group membership. FINDINGS Most injured drivers (70.2%) were THC/BAC-negative; 1274 (18.3%) had THC > 0, including 186 (2.7%) in the high THC group; 1161 (16.7%) had BAC > 0, including 606 (8.7%) in the high BAC group. Males and drivers aged less than 45 years had higher adjusted odds of being in the high THC group (versus the THC/BAC-negative group). Importantly, 4.6% of drivers aged less than 19 years had THC ≥ 5 ng/ml, and drivers aged less than 19 years had higher unadjusted odds of being in the high THC group than drivers aged 45-54 years. Males, drivers aged 19-44 years, rural drivers, seriously injured drivers and drivers injured in single-vehicle, night-time or weekend collisions had higher adjusted odds ratios (aORs) for being in the high alcohol group (versus THC/BAC-negative). Drivers aged less than 35 or more than 65 years and drivers involved in multi-vehicle, daytime or weekday collisions had higher adjusted odds for being in the high THC group (versus the high BAC group). CONCLUSIONS In Canada, risk factors for cannabis-related motor vehicle collisions appear to differ from those for alcohol-related motor vehicle collisions. The collision factors associated with alcohol (single-vehicle, night-time, weekend, rural, serious injury) are not associated with cannabis-related collisions. Demographic factors (young drivers, male drivers) are associated with both alcohol and cannabis-related collisions, but are more strongly associated with cannabis-related collisions.
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Affiliation(s)
- J R Brubacher
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - H Chan
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - S Erdelyi
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - Y Yuan
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - R Daoust
- Department of Emergency Medicine, University of Montréal, Montréal, QC, Canada
| | - C Vaillancourt
- Department of Emergency Medicine, The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - B Rowe
- Department of Emergency Medicine, University of Alberta, Edmonton, AB, Canada
| | - J Lee
- Department of Emergency Medicine, University of Toronto, Toronto, ON, Canada
| | - E Mercier
- Department of Emergency Medicine, Université Laval, Québec City, QC, Canada
| | - P Atkinson
- Department of Emergency Medicine, Dalhousie Medicine New Brunswick, St John, NB, Canada
| | - P Davis
- Department of Emergency Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - D Clarke
- Department of Surgery (Neurosurgery), Dalhousie University, Halifax, NS, Canada
| | - J Taylor
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - A Macpherson
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - M Emond
- Department of Emergency Medicine, Université Laval, Québec City, QC, Canada
| | - D Al-Hakim
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
| | - C Horwood
- Department of Emergency Medicine, Memorial University, St John, NB, Canada
| | - I Wishart
- Department of Emergency Medicine, University of Calgary, Calgary, AB, Canada
| | - K Magee
- Department of Emergency Medicine, Dalhousie University, Halifax, NS, Canada
| | - J Rao
- Department of Surgery, University of Saskatchewan, Saskatoon, SK, Canada
| | - J Eppler
- Department of Emergency Medicine, University of British Columbia, Columbia, BC, Canada
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Gueye NR, Prada K, de Moissac D. Recreational Cannabis Legislation: substance use and impaired driving among Canadian rural and urban postsecondary students. J Cannabis Res 2023; 5:8. [PMID: 36918969 PMCID: PMC10014410 DOI: 10.1186/s42238-023-00175-y] [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: 10/25/2021] [Accepted: 02/01/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Investigation of cannabis use trends among emerging adults (EA, aged between 18 and 24 years) following 2018 Canadian Recreational Cannabis Legislation (RCL) is critical. EAs report the heaviest cannabis use in Canada and are particularly vulnerable to the onset of problematic substance use. OBJECTIVES To describe and compare post-RCL use of cannabis and other state-altering substances, as well as the prevalence of impaired driving, among EA postsecondary students in both rural and urban settings, studying on one of five campuses in either Manitoba, Ontario, or Quebec. METHODS For this quantitative cross-sectional study, a self-report survey was administered to 1496 EA postsecondary students in the months following RCL (2018-2019). Multiple logistic regression analyses were conducted to explore the influence of provincial and urban/rural living contexts on recreational cannabis use, other state-altering substance use and impaired driving behaviours, adjusting for sociodemographic variables. RESULTS Statistically significant differences were observed between cohorts in almost all measures. Quebec students were more likely to have consumed cannabis during their lifetime (AOR = 1.41, 95% CI [1.05, 1.90]) than all other cohorts. Rural cohorts all had greater odds of reporting consumption of cannabis during the previous year compared to urban cohorts (AOR = 1.32, 95% CI [1.04, 1.67]). However, the relation between cannabis use in the last month and operating a motor vehicle after using cannabis (lifetime and past month) and living context differed between subjects in Quebec and those in the two other provinces. Quebec's students having lived mostly in urban contexts had greater odds of using cannabis in the past month and operating a motor vehicle after using cannabis (lifetime and past month) than those in rural contexts; the opposite was observed in Manitoba and Ontario. Differing interprovincial prohibitive/permissive legislation and licit cannabis infrastructure appeared to have little impact on post-RCL substance use. CONCLUSIONS In Manitoba and in Ontario, rural/urban living context seems to better predict substance use and related road-safety practices, suggesting these trends supersede permissive/prohibitive provincial legislation and licit cannabis-related infrastructures. Further investigation into sociodemographic factors influencing state-altering substance use and impaired driving, and maintaining tailored cannabis misuse prevention campaigns, is warranted on Canadian campuses.
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Affiliation(s)
- N'deye Rokhaya Gueye
- Université de Saint-Boniface, Office #3217, 200 de la Cathédrale Ave., Winnipeg, MB, R2H 0H7, Canada.
| | - Kevin Prada
- Université de Saint-Boniface, Office #3217, 200 de la Cathédrale Ave., Winnipeg, MB, R2H 0H7, Canada
| | - Danielle de Moissac
- Université de Saint-Boniface, Office #3217, 200 de la Cathédrale Ave., Winnipeg, MB, R2H 0H7, Canada
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Huỳnh C, Beaulieu-Thibodeau A, Fallu JS, Bergeron J, Jacques A, Brochu S. Typologies of Canadian young adults who drive after cannabis use: A two-step cluster analysis. BEHAVIORAL SCIENCES & THE LAW 2022; 40:310-330. [PMID: 35445426 DOI: 10.1002/bsl.2575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/18/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Young adults that drive after cannabis use (DACU) may not share all the same characteristics. This study aimed to identify typologies of Canadians who engage in DACU. About 910 cannabis users with a driver's license (17-35 years old) who have engaged in DACU completed an online questionnaire. Two-step cluster analysis identified four subgroups, based on driving-related behaviors, cannabis use and related problems, and psychological distress. Complementary comparative analysis among the identified subgroups was performed as external validation. The identified subgroups were: (1) frequent cannabis users who regularly DACU; (2) individuals with generalized deviance with diverse risky road behaviors and high levels of psychological distress; (3) alcohol and drug-impaired drivers who were also heavy frequent drinkers; and (4) well-adjusted youths with mild depressive-anxious symptoms. Individuals who engaged in DACU were not a homogenous group. When required, prevention and treatment need to be tailored according to the different profiles.
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Affiliation(s)
- Christophe Huỳnh
- University Institute on Addictions, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- School of Psychoeducation, Université de Montréal, Montreal, Quebec, Canada
- Department of Psychiatry and Addiction, Université de Montréal, Montreal, Quebec, Canada
| | - Alexis Beaulieu-Thibodeau
- University Institute on Addictions, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Sébastien Fallu
- University Institute on Addictions, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- School of Psychoeducation, Université de Montréal, Montreal, Quebec, Canada
- Centre for Public Health Research, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Université de Montréal, Montreal, Quebec, Canada
| | - Jacques Bergeron
- University Institute on Addictions, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Alain Jacques
- Program to Assess and Reduce the Risk of Impaired Driving, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Serge Brochu
- University Institute on Addictions, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- School of Criminology, Université de Montréal, Montreal, Quebec, Canada
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Hammond D, Goodman S, Hobin E. Cannabis use prior to legalisation among alcohol consumers in the Canadian Yukon and Northwest territories. Int J Circumpolar Health 2021; 80:1948254. [PMID: 34278981 PMCID: PMC8291053 DOI: 10.1080/22423982.2021.1948254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Although rates of substance use are higher in the Canadian territories than the provinces, there is little research on cannabis use. This exploratory study describes cannabis use and related risk behaviours among alcohol consumers in Whitehorse (Yukon) and Yellowknife (Northwest Territories), with comparisons to data from the provinces. Prior to non-medical cannabis legalisation, respondents (n = 387) aged ≥19 were recruited from a study on alcohol labelling to complete an online cannabis survey. Logistic regression was used to compare territorial and provincial data, and correlates of cannabis use in the territories. Forty-seven percent of respondents were past 12-month cannabis consumers, and 15.5% were daily/almost daily consumers, significantly higher than in the provinces (p < 0.001 for both). Dried herb (85.7%) and edibles (58.2%) were most commonly used among consumers. Use of dried herb, edibles, solid concentrates and tinctures was significantly higher than in the provinces (all p ≤ 0.01). Twenty-four percent of respondents had ridden with a driver who had used cannabis, while 31.9% of cannabis consumers had driven within 2h of cannabis use, significantly higher than the provinces (both p < 0.001). Further research should examine the impact of legalisation on cannabis use in the territories, including rural communities.
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Affiliation(s)
- David Hammond
- School of Public Health Sciences, University of Waterloo, Waterloo, Canada
| | - Samantha Goodman
- School of Public Health Sciences, University of Waterloo, Waterloo, Canada
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Ciccarelli TM, Leatherdale ST, Perlman C, Thompson K, Ferro MA. Steering clear: Traffic violations among emerging adults who engage in habitual or casual cannabis use. ACCIDENT; ANALYSIS AND PREVENTION 2021; 153:106059. [PMID: 33662695 DOI: 10.1016/j.aap.2021.106059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
While some research has shown that cannabis use can impair driving ability, evidence to the degree and impact of impairment are lacking. This study examined the association between habitual or casual cannabis use and past-year traffic violations among emerging adults (EAs). Data come from the 2012 Canadian Community Health Survey-Mental Health. Respondents (n = 5630) were categorized as: early (15-19 y), middle (20-24 y), and late (25-29 y) EAs. Traffic violations were measured using self-report and cannabis use was measured using the WHO Composite International Diagnostic Interview. The prevalence of traffic violations was higher for males (19.2 %) vs females (9.9 %) and middle (16.2 %) and late (19.4 %) EAs vs early (8.8 %) EAs. The odds of reporting traffic violations were higher for EAs who engaged in habitual [OR = 1.77 (1.17-2.67)] or casual [OR = 1.79 (1.27-2.51)] cannabis use when compared to non-users. Age moderated the association such that higher odds of traffic violations were reported in early EAs who were casual cannabis users and middle EAs who were habitual or casual cannabis users when compared to non-users. Use of other drugs was also a moderator-in the absence vs. presence of other drug use, odds of traffic violations were higher in those who engaged in either habitual or casual use of cannabis. When accounting for the moderating effects of age and drug use, habitual and casual cannabis use resulted in increased odds of a traffic violation. Future research is warranted to explore the robustness of our findings.
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Affiliation(s)
- Tiana M Ciccarelli
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Canada
| | - Scott T Leatherdale
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Canada
| | - Chris Perlman
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Canada
| | - Kara Thompson
- Department of Psychology, St. Francis Xavier University, Antigonish, Canada
| | - Mark A Ferro
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Canada.
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