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Marijuana use and driving in Washington State: Risk perceptions and behaviors before and after implementation of retail sales

3/1/19--Washington is among the first states to legalize recreational use of marijuana. This study examined marijuana use and risk perceptions before and after retail sales of recreational marijuana began in July 2014, the relationship between risk perceptions and marijuana use, and the relationship between self-reported marijuana use and drug test results. The study concluded that the prevalence of daytime THC-positive drivers increased substantially a few months after retail sales of marijuana were legal. Read

Content, exposure, and effects of public discourses about marijuana

11/5/18--This review presents a comprehensive picture of research studies about marijuana-related content in news, social media, and advertisements. Studies that examined the extent of people’s exposure to the messages and its effects were also included. Read

Scientific quality of health-related articles in specialty marijuana and general newspapers in San Francisco

10/25/18--Recreational marijuana is being legalized in states across the USA, and the public relies on popular media for health information about the drug. An assessment was performed on the accuracy of reporting on health effects of marijuana use in GreenState, a specialty publication on marijuana published by the San Francisco Chronicle and the main newspaper using the Index of Scientific Quality for Health Related News Reports. Seventeen GreenState articles and four San Francisco Chronicle articles were identified for analysis. Read

The “real” number of Washington State adolescents using marijuana, and why: A misclassification analysis

10/26/18--Approximately 12% of Washington adolescents claimed to have used marijuana in the past 30 days. Estimates indicate this figure is likely closer to 18%. Determinants of use included use of other substances, gender, age, and measures of deviant social influences, personality/attitude, school and family bonds, bullying, and acquisition ease, while determinants of misreporting included use of other substances, gender, parental education, and family bonds. Failing to control for misreporting considerably underestimates the prevalence of marijuana use among adolescents. Read