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Enhancing Interpretable, Transparent, and Unobtrusive Detection of Acute Marijuana Intoxication in Natural Environments: Harnessing Smart Devices and Explainable AI to Empower Just-In-Time Adaptive Interventions: Longitudinal Observational Study

Enhancing Interpretable, Transparent, and Unobtrusive Detection of Acute Marijuana Intoxication in Natural Environments: Harnessing Smart Devices and Explainable AI to Empower Just-In-Time Adaptive Interventions: Longitudinal Observational Study

For model building, episodes without mobile sensor data (n=72) were excluded, leaving 221 marijuana self-reports. Furthermore, episodes without Fitbit sensor data (n=17) were excluded, leaving 50 participants. These participants provided 132 marijuana use self-reports and 909 “no marijuana use” reports.

Sang Won Bae, Tammy Chung, Tongze Zhang, Anind K Dey, Rahul Islam

JMIR AI 2025;4:e52270

Discussions of Cannabis Over Patient Portal Secure Messaging: Content Analysis

Discussions of Cannabis Over Patient Portal Secure Messaging: Content Analysis

Medical marijuana (defined as derivatives of the Cannabis sativa plant used to ease symptoms for medical conditions certified by a clinician and acquired through state-sanctioned dispensaries) [1] has been legalized in 38 US states, of which 24 have legalized recreational use as of 2024 [2]. In Pennsylvania, the Medical Marijuana Act was signed into law in 2016, legalizing the use of medical marijuana for 17 medical conditions [3].

Vishal A Shetty, Christina M Gregor, Lorraine D Tusing, Apoorva M Pradhan, Katrina M Romagnoli, Brian J Piper, Eric A Wright

J Med Internet Res 2024;26:e63311

Effectiveness of a Mobile App to Increase Risk Perception of Tobacco, Alcohol, and Marijuana Use in Mexican High School Students: Quantitative Study

Effectiveness of a Mobile App to Increase Risk Perception of Tobacco, Alcohol, and Marijuana Use in Mexican High School Students: Quantitative Study

The second part of the session followed the same procedure with the comic “Marijuana” to understand the risks and immediate effects of using drugs, and identify the skills involved in problem-solving and resistance to peer pressure involved. This was applied using the cases of the characters (Agus, Diana, Pedro, and Omar). Participants then completed the trivia and quiz on marijuana to reinforce their knowledge.

Patricia María del Carmen Fuentes A, Alberto Jiménez Tapia, Eunice M Ruiz-Cortés, Fernando Bolaños-Ceballos, Julio César Flores Castro, Rafael Gutiérrez, Catalina González-Forteza

JMIR Mhealth Uhealth 2023;11:e37873

Reducing Cannabis Use in Young Adults With Psychosis Using iCanChange, a Mobile Health App: Protocol for a Pilot Randomized Controlled Trial (ReCAP-iCC)

Reducing Cannabis Use in Young Adults With Psychosis Using iCanChange, a Mobile Health App: Protocol for a Pilot Randomized Controlled Trial (ReCAP-iCC)

Members of our team with expertise in the treatment of CUD and psychosis (AW, AAB, TL, and DJA), patients partners, and a doctoral trainee (OT) integrated motivational (eg, to facilitate “change talk”), behavioral, and coping skills training approaches (eg, drug refusal skills, problem solving) described in the Marijuana Brief Intervention manual published by Copeland [45] and expanded the intervention by adding intervention components (modules) and activities (based on MI, CBT, and harm reduction principles

Ovidiu Tatar, Amal Abdel-Baki, Anne Wittevrongel, Tania Lecomte, Jan Copeland, Pamela Lachance-Touchette, Stephanie Coronado-Montoya, José Côté, David Crockford, Simon Dubreucq, Sophie L'Heureux, Clairélaine Ouellet-Plamondon, Marc-André Roy, Philip G Tibbo, Marie Villeneuve, Didier Jutras-Aswad

JMIR Res Protoc 2022;11(11):e40817

Developing a Smartphone-Based Adjunct Intervention to Reduce Cannabis Use Among Juvenile Justice-Involved Adolescents: Protocol for a Multiphase Study

Developing a Smartphone-Based Adjunct Intervention to Reduce Cannabis Use Among Juvenile Justice-Involved Adolescents: Protocol for a Multiphase Study

The Marijuana Use Questionnaire [66,67] will capture youths’ preferred type (eg, plant or concentrate) and mode (eg, vape, smoke, and edible) of cannabis use. Youth will also report on their perceptions of normative cannabis use among their peers.

Sarah A Helseth, John Guigayoma, Dayna Price, Anthony Spirito, Melissa A Clark, Nancy P Barnett, Sara J Becker

JMIR Res Protoc 2022;11(3):e35402

Identifying Health-Related Discussions of Cannabis Use on Twitter by Using a Medical Dictionary: Content Analysis of Tweets

Identifying Health-Related Discussions of Cannabis Use on Twitter by Using a Medical Dictionary: Content Analysis of Tweets

Twitter posts containing the cannabis-related terms blunt, bong, budder, cannabis, cbd, ganja, hash, hemp, indica, kush, marijuana, marihuana, reefer, sativa, thc, and weed were obtained from January 1 to August 31, 2020. These terms were informed by prior research that focused on comprehensively collecting cannabis-related posts on Twitter [11]. To treat each observation as independent, retweets were removed, leaving a total of 16,703,751 unique posts that contained these terms during this time.

Jon-Patrick Allem, Anuja Majmundar, Allison Dormanesh, Scott I Donaldson

JMIR Form Res 2022;6(2):e35027

Geographic Differences in Cannabis Conversations on Twitter: Infodemiology Study

Geographic Differences in Cannabis Conversations on Twitter: Infodemiology Study

A study of influential tweets (ie, tweets with a high number of re-tweets) about both alcohol and cannabis found that common themes included using marijuana or alcohol with friends, sex/romance, and tobacco or other drugs [11]. However, these content analyses had samples restricted to influential Twitter users and adolescents [12,13,15,23].

Jenna van Draanen, HaoDong Tao, Saksham Gupta, Sam Liu

JMIR Public Health Surveill 2020;6(4):e18540