Poster #252 EFFECT OF CANNABIS USE ON THE COURSE OF SCHIZOPHRENIA IN MALE PATIENTS: A PROSPECTIVE COHORT STUDY

2012 ◽  
Vol 136 ◽  
pp. S372
Author(s):  
Daniel van Dijk ◽  
Maarten W.J. Koeter ◽  
Ronald Hijman ◽  
René S. Kahn ◽  
Wim van den Brink
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cannabis Use ◽  
Male Patients

Effect of cannabis use on the course of schizophrenia in male patients: A prospective cohort study

2012 ◽  
Vol 137 (1-3) ◽  
pp. 50-57 ◽  
Author(s):  
Daniel van Dijk ◽  
Maarten W.J. Koeter ◽  
Ron Hijman ◽  
René S. Kahn ◽  
Wim van den Brink
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cannabis Use ◽  
Male Patients

scholarly journals Are IQ and educational outcomes in teenagers related to their cannabis use? A prospective cohort study

2016 ◽  
Vol 30 (2) ◽  
pp. 159-168 ◽  
Author(s):  
C Mokrysz ◽  
R Landy ◽  
SH Gage ◽  
MR Munafò ◽  
JP Roiser ◽  
...  
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Educational Outcomes ◽  
Prospective Cohort ◽  
Cannabis Use

scholarly journals Prospective cohort study of cannabis use, predisposition for psychosis, and psychotic symptoms in young people

BMJ ◽  
2004 ◽  
Vol 330 (7481) ◽  
pp. 11 ◽  
Author(s):  
Cécile Henquet ◽  
Lydia Krabbendam ◽  
Janneke Spauwen ◽  
Charles Kaplan ◽  
Roselind Lieb ◽  
...  
Keyword(s):  
Cohort Study ◽  
Young People ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cannabis Use ◽  
Psychotic Symptoms

scholarly journals Trends in Youth Cannabis Use Across Cannabis Legalization: Data from the COMPASS Prospective Cohort Study

2021 ◽  
pp. 101351
Author(s):  
Alexandra M.E. Zuckermann ◽  
Katelyn V. Battista ◽  
Richard E. Bélanger ◽  
Slim Haddad ◽  
Alexandra Butler ◽  
...  
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cannabis Use

scholarly journals The Heart and Cannabis (THC) Cohort: Differences in Baseline Health and Behaviors by Cannabis Use

2022 ◽  
Author(s):  
Salomeh Keyhani ◽  
Beth E. Cohen ◽  
Marzieh Vali ◽  
Katherine J. Hoggatt ◽  
Dawn M. Bravata ◽  
...  
Keyword(s):  
Cohort Study ◽  
Drug Use ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cardiovascular Health ◽  
Cannabis Use ◽  
Behavioral Risk ◽  
Cohort Differences ◽  
Multivariable Analyses ◽  
Artery Disease

Abstract Background Evidence on the cardiovascular health effects of cannabis use is limited. We designed a prospective cohort study of older Veterans (66 to 68 years) with coronary artery disease (CAD) to understand the cardiovascular consequences of cannabis use. We describe the cohort construction, baseline characteristics, and health behaviors that were associated with smoking cannabis. Objective To understand the cardiovascular consequences of cannabis use. Design We designed a prospective cohort study of older Veterans (66 to 68 years) with CAD. Participants A total of 1,015 current cannabis smokers and 3,270 non-cannabis smokers with CAD. Main Measures Using logistic regression, we examined the association of baseline variables with smoking cannabis in the past 30 days. Results The current cannabis smokers and non-current smokers were predominantly male (97.2% vs 97.1%, p=0.96). Characteristics associated with recent cannabis use in multivariable analyses included lack of a high school education (odds ratio [OR] 2.15, 95% confidence interval [CI]: 1.10 to 4.19), financial difficulty (OR 1.47, 95% CI: 1.02 to 2.11), tobacco use (OR 3.02, 95% CI: 1.66 to 5.48), current drug use (OR 2.82, 95% CI: 1.06 to 7.46), and prior drug use (OR 2.84, 95% CI: 2.11 to 3.82). In contrast, compared to individuals with 0 to 1 comorbid conditions, those with 5 chronic conditions or more (OR 0.43, 95% CI: 0.27 to 0.70) were less likely to smoke cannabis. Conclusions In this older high-risk cohort, smoking cannabis was associated with higher social and behavioral risk, but with fewer chronic health conditions.

scholarly journals Effect of cannabis use in people with chronic non-cancer pain prescribed opioids: findings from a 4-year prospective cohort study

2018 ◽  
Vol 3 (7) ◽  
pp. e341-e350 ◽  
Author(s):  
Gabrielle Campbell ◽  
Wayne D Hall ◽  
Amy Peacock ◽  
Nicholas Lintzeris ◽  
Raimondo Bruno ◽  
...  
Keyword(s):  
Cohort Study ◽  
Cancer Pain ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cannabis Use

Young‐adult compared to adolescent onset of regular cannabis use: A 20‐year prospective cohort study of later consequences

2021 ◽  
Author(s):  
Gary C. K. Chan ◽  
Denise Becker ◽  
Peter Butterworth ◽  
Lindsey Hines ◽  
Carolyn Coffey ◽  
...  
Keyword(s):  
Cohort Study ◽  
Young Adult ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cannabis Use

scholarly journals Prelegalisation patterns and trends of cannabis use among Canadian youth: results from the COMPASS prospective cohort study

BMJ Open ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. e026515 ◽  
Author(s):  
Alexandra M E Zuckermann ◽  
Katelyn Battista ◽  
Margaret de Groh ◽  
Ying Jiang ◽  
Scott T Leatherdale
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Female Students ◽  
Cannabis Use ◽  
Secondary Outcome ◽  
Aboriginal Students ◽  
School Year ◽  
Canadian Youth ◽  
The Impact

ObjectiveCanada federally legalised recreational cannabis use among adults in October 2018. The impact this will have on Canadian youth is cause for concern. The current study examined changes in youth cannabis use over the time prior to legalisation to explore the impact of the beginning federal discourse around legalisation during the 2016/2017 school year.DesignCOMPASS, a prospective cohort study based on annual self-administered questionnaires.SettingOntario and Alberta during the first 6 years of the COMPASS study (2012/2013 to 2017/2018).ParticipantsCanadian grade 9–12 students attending secondary schools participating in COMPASS. In total, 2 30 404 questionnaires were included in the analysis (Y1: 2012/2013, n=24 173; Y2: 2013/2014, n=45 298; Y3: 2014/2015, n=42 355, Y4: 2015/2016, n=40 436; Y5: 2016/2017, n=37 060; Y6: 2017/2018, n=34 897).Primary and secondary outcome measuresLifetime cannabis use, past-year cannabis use, weekly cannabis use, ease of access to cannabis and age at first cannabis use.ResultsCannabis never-use decreased between Y5 and Y6. Changes in age at first cannabis use mirrored this trend, with male students consistently starting younger. Cannabis access rates increased from Y4, mainly led by female students. Lifetime and past-year use rates were lowest in Y4 then increased in Y5 and Y6 due to a rise in the occasional use more common among female students, who reported use increases first. Non-white students were more likely use cannabis, with black and Aboriginal students the only two groups consistently reporting more weekly than occasional use, though with opposing trajectories. Overall, Aboriginal students had the highest odds of reporting lifetime, past-year and weekly use among the demographic groups examined.ConclusionAfter a steady decrease in patterns of cannabis among youth over several years, it appears that there has been a gradual increase in cannabis use among youth following the start of discourse around cannabis legalisation, with some populations of youth being at greater risk.

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