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AJP CME: August 2016 - Concurrent and Sustained Cumulative Effects of Adolescent Marijuana Use on Subclinical Psychotic Symptoms

Activity Type:

  • Journal CME


Release Date: 8/1/2016

Expiration Date: 7/31/2018

  • AMA PRA Category 1 Physician: 1
  • Participation: 1

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Overview

Objective: Adolescents who regularly use marijuana may be at heightened risk of developing subclinical and clinical psychotic symptoms. However, this association could be explained by reverse causation or other factors. To address these limitations, the current study examined whether adolescents who engage in regular marijuana use exhibit a systematic increase in subclinical psychotic symptoms that persists during periods of sustained abstinence.

Method: The sample comprised 1,009 boys who were recruited in 1st and 7th grades. Self-reported frequency of marijuana use, subclinical psychotic symptoms, and several time-varying confounds (e.g., other substance use, internalizing/externalizing problems) were recorded annually from age 13 to 18. Fixed-effects (within-individual change) models examined whether adolescents exhibited an increase in their subclinical psychotic symptoms as a function of their recent and/or cumulative history of regular marijuana use and whether these effects were sustained following abstinence. Models controlled for all time-stable factors (default) and several time-varying covariates as potential confounds.

Subscription and Pricing

This activity is only available to AJP CME subscribers.

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  • Non AJP Subscriber – 12 Month CME Subscription: $300.00

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Educational Objective

The participant will identify factors suggesting that regular marijuana use may increase the risk that an adolescent will experience persistent subclinical psychotic symptoms.

Target Audience

This program is designed for all psychiatrists in clinical practice, residents in Graduate Medical Education programs, medical students interested in psychiatry, and other physicians who wish to advance their current knowledge of clinical medicine.

Estimated Time to Complete

Duration: 1 hour
Begin Date: August 1, 2016
End Date: July 31, 2018

How to Earn Credit

In order to earn CME credit, subscribers should read through the material presented in the article. After reading the article, complete the quiz and submit your evaluation and study hours (up to 1 AMA PRA Category 1 Credit™).  A score of 60% or higher is required to receive credit.

Accreditation

The American Psychiatric Association (APA) is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The APA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 Credit™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Faculty and Planner Disclosures

Title: Concurrent and Sustained Cumulative Effects of Adolescent Marijuana Use on Subclinical Psychotic Symptoms

Authors: Jordan Bechtold, Ph.D., Alison Hipwell, Ph.D., David A. Lewis, M.D., Rolf Loeber, Ph.D., Dustin Pardini, Ph.D.

Affiliations: From the Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh (J.B., A.H., D.A.L., R.L.); and the Department of Criminology and Criminal Justice, Arizona State University, Phoenix (D.P.).

Disclosures: Dr. Lewis has received investigator-initiated research support from Pfizer; in 2013–2015 he served as a consultant in the areas of target identification and validation and new compound development to Autifony, Bristol-Myers Squibb, Concert Pharmaceuticals, and Sunovion. The other authors report no financial relationships with commercial interests.

Discussion of unapproved or investigational use of products*: No.

*APA policy requires disclosure by CME authors of unapproved or investigational use of products discussed in CME programs. Off-label use of medications by individual physicians is permitted and common. Decisions about off-label use can be guided by scientific literature and clinical experience.

Program Planners

Robert Freedman, M.D. (Editor-in-Chief, AJP); Susan K. Schultz, M.D. (Deputy Editor, AJP); Michael D. Roy (Editorial Director, AJP) ; Michael A. Pogachar (Online Content Manager, Journals).

Dr. Schultz has received research support from the Alzheimer’s Disease Cooperative Study for projects conducted in partnership with Toyama Chemical Company and in partnership with Eli Lilly and Company. Dr. Freedman, Mr. Roy, and Mr. Pogachar report no financial relationships with commercial interests.

Hardware/Software Requirements

This internet-based CME activity is best experienced using Internet Explorer 8+, Mozilla Firefox 3+, Safari 4+. This Web site requires that JavaScript and session cookies be enabled. Certain activities may require additional software to view multimedia, presentation, or printable versions of the content. These activities will be marked as such and will provide links to the required software. That software may be: Adobe Flash, Adobe Acrobat, Microsoft PowerPoint, and Windows Media Player.

Optimal System Configuration:
Flash Player: Adobe Flash Player 10.1+ 
Browser: Firefox 3+, Internet Explorer 8.0+, Safari 4.0+, or Google Chrome 7.0+ 
Operating System: Windows XP+ or Mac OS X 10.4+ 
Internet Connection: 1 Mbps or higher
Screen Resolution: 1024 x 768 pixels.

Minimum Requirements:
Windows PC:
500-MHz Pentium II; Windows XP or higher; 128 MB RAM; Video Card at least 64MB of video memory; Sound Card at least 16-bit; Macromedia Flash Player 10 or higher, audio playback with speakers for programs with video content; Firefox 1.1+, Internet Explorer 7.0+, Safari 1.0+, Google Chrome, or Opera
Macintosh:
Mac OS X 10.3 or higher with latest updates installed; 1.83MHz Intel Core Duo or faster; RAM: 128MB or more; Video Card: at least 64MB of video memory; Sound Card: at least 16-bit

For assistance: Contact educme@psych.org for questions about this course | Contact learningcenter@psych.org for technical assistance

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