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Colorado Youth Marijuana Use: Up – Down – Flat? Examine the Data and You Decide
Rocky Mountain High Intensity Drug Trafficking Area (RMHIDTA)
DENVER – On June 21, 2016, The Denver Post published an article “Survey: Pot use among Colorado teens flat,” based on the recently-released 2015 Healthy Kids Colorado Survey (HKCS) recently released Rocky Mountain HIDTA has been inundated with inquiries regarding this article and, therefore, prepared a response for clarification and consideration by the reader. For purposes of this response, marijuana use refers to past month or past 30 days marijuana use that is the criteria used in the surveys. The most recent (2015/2016) Rocky Mountain HIDTA publications on the impact of marijuana legalization in Colorado reported ... see more.

Landmark 4-Year Study Finds Marijuana Use Does Not Reduce or End Opioid Use
The Lancet Public Health, July 2018
Researchers “found no evidence of a temporal [causal] relationship between cannabis use and pain severity or pain interference, and no evidence that cannabis use reduced prescribed opioid use or increased rates of opioid discontinuation.”

Cannabis Use and Risk of Prescription Opioid Use Disorder in the United States
American Journal of Psychiatry, Sept 2017
Conclusions: Cannabis use appears to increase rather than decrease the risk of developing nonmedical prescription opioid use and opioid use disorder.

THC exposure of human iPSC neurons impacts genes associated with neuropsychiatric disorders
Translational Psychiatry, April 2018
"In summary, we found significant associations of THC- related pathways to autism and intellectual disability. Furthermore, we have used a dynamic, human-relevant system to demonstrate a phenotypic link between THC treatment and schizophrenia. We hypothesize that THC exposure, by impacting many of the same synaptic and epigenetic pathways already associated with psychiatric disorders, may serve as an additive risk to existing genetic/ epigenetic risk factors."  

Sam: Lessons Learned From Marijuana Legalization In Four U.S. States And D.C.

2016 National Survey on Drug Use and Health

Washington State Marijuana Impact Report (2016)

News Articles:

Potent pot, vulnerable teens trigger concerns in first states to legalize marijuana
washingtonpost.com, June 16, 2019

Negative Effects of Marijuana: Scientific Research Shows Pot is Harmful
kgov.com, June 2019

Speech on Bill C-45: Why would Senators say “yes” to the damage this Bill will cause?
By Betty Unger, Alberta Senator, February 27, 2018

Washington is breaking promise to keep illegal pot in check
Seattle Times, 5/31/18

Facts and statistics meet opinions at Clark County Council marijuana discussion
Clark County Today, May 31, 2018

Legalization Violations in Washington
News Article Compilation by Parents Opposed to Pot, 5/29/18

Understanding the Full Effect of the Changing Legal Status of Marijuana on Youth: Getting It Right (Media Summary)
JAMA Pediatrics, 2/2017

Clark County marijuana ban to remain for now
Clark County Today, 3/1/18

Another Young Victim Of Washington’s Marijuana Policy
Parents Opposed to Pot, 8/5/17

Parents Opposed to Pot, 12/7/15


Research Resources:

The Northwest High Intensity Drug Trafficking Area's M Files: "This website is presented by the Northwest HIDTA (High Intensity Drug Trafficking Areas) to support its mission to reduce demand for illicit drugs by promoting education, treatment, and prevention programs, and to improve collaboration with law enforcement and the justice system to end drug trafficking and drug-related violent crime."

Washington State Institute for Public Policy: "Advancing the Use of Evidence and Economics in State Government Policymaking Background Since the 1990s, the Washington State legislature has directed WSIPP to review research on “what works” (and what does not) in public policy. WSIPP’s work has spanned many topic areas, including criminal justice, education, child welfare, behavioral health, workforce development, public health, and prevention. In our systematic reviews, we assess the research evidence to identify public policies that improve statewide outcomes of legislative interest; we then estimate the benefits, costs, and risks associated with different options. This has become WSIPP’s standard approach to benefit-cost analysis." See additional resources here.

UW Alcohol and Drug Abuse Institute: "Mission To advance research, policy, and practice in order to improve the lives of individuals and communities affected by alcohol and drug use and addiction."

Washington State Healthy Youth Survey: "The Healthy Youth Survey (HYS) is a collaborative effort of the Office of the Superintendent of Public Instruction, the Department of Health, the Department of Social and Health Service's Division of Behavioral Health and Recovery, and the Liquor and Cannabis Board."

Washington State Statistical Analysis Center: "We provide access to crime and justice statistics, and conduct studies and analysis to inform Washington policy and budget development. SAC databases, publications, and staff are available to assist policy makers, researchers, law enforcement, and the public."

Monitoring the Future: "Monitoring the Future is an ongoing study of the behaviors, attitudes, and values of Americans from adolescence through adulthood."

Rocky Mountain High Intensity Drug Trafficking Area (RMHIDTA) Reports

National Survey on Drug Use and Health (NSDUH)