Færre unge indtager cannabis. Blandt dem, der gør, er der ifølge data publiceret i American Academy of Child & Adolescent Psychiatry færre, der har et problematisk brug.[1]
Forskere ved Washington University’s School of Medicine i St. Louis evaluerede regeringens undersøgelsesdata vedrørende unges stofvaner i årene 2002 til 2013. Forskerne rapporterede, at procentdelen af respondenterne, som sagde, at de havde brugt cannabis indenfor det sidste år, faldt med 10% i undersøgelsesperioden.
Antallet af unge, som rapporterede om cannabis-relaterede problemer såsom afhængighed af planten, faldt med 24% fra 2002 til 2013. Studiets fund stemmer overens med tidligere undersøgelser, som viste fald i i brugen af cannabis[2] og misbrug[3] blandt unge i de sidste omkring 15 år – en periode, hvor adskillige stater har liberaliseret deres cannabis politik.
[1] Richard A. Grucza, Arpana Agrawal, Arpana Agrawal. Declining Prevalence of Marijuana Use Disorders Among Adolescents in the United States, 2002 to 2013. American Academy of Child & Adolescent Psychiatry. http://www.jaacap.com/article/S0890-8567%2816%2930101-0/abstract
10 Scientific Studies From 2016 Showing Marijuana Is Safe and Effective http://www.alternet.org/drugs/10-scientific-studies-2016-marijuana-safe-effective
2 Federal Study: Passage Of Medical Marijuana Laws Not Responsible For Increased Marijuana Use. https://norml.org/news/2015/06/18/federal-study-passage-of-medical-marijuana-laws-not-responsible-for-increased-marijuana-use
Deborah S Hasin, Melanie Wall, Katherine M Keyes et al.: Medical marijuana laws and adolescent marijuana use in the USA from 1991 to 2014: results from annual, repeated cross-sectional surveys. Lancet Psychiatry 2015;
2: 601–08 Published Online June 16, 2015. http://www.thelancet.com/pdfs/journals/lanpsy/PIIS2215-0366(15)00217-5.pdf
3 Study: No Increase In Problematic Cannabis Use. https://norml.org/news/2016/02/25/study-no-increase-in-problematic-cannabis-use
Richard A. Grucza, PhD1; Arpana Agrawal, PhD1; Melissa J. Krauss et al.: Recent Trends in the Prevalence of Marijuana Use and Associated Disorders in the United States. JAMA Psychiatry. 2016;73(3):300-301. doi:10.1001/jamapsychiatry.2015.3111. https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2491353 xRichard A.