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Evaluating Perceptions of the CANreduce 2.0 eHealth Intervention for Cannabis Use: Focus Group Study

Evaluating Perceptions of the CANreduce 2.0 eHealth Intervention for Cannabis Use: Focus Group Study

Cannabis is the most widely used drug worldwide, posing a significant problem due to its negative effects on users’ well-being and its broader impact on public health. According to the latest report from the United Nations Office on Drugs and Crime [1], approximately 228 million people consumed cannabis in 2022, with many countries reporting a sustained increase in the prevalence of cannabis use (CU), hospitalizations, and diagnosed psychiatric disorders related to CU.

Daniel Folch-Sanchez, Maria Pellicer-Roca, María Agustina Sestelo, Paola Zuluaga, Francisco Arias, Pablo Guzmán Cortez, Salma Amechat, Gustavo Gil-Berrozpe, Estefania Lopez Montes, Clara Mercadé, Francina Fonseca, Laia Miquel, Joan I Mestre-Pintó

J Med Internet Res 2025;27:e65025

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

Finally, it is crucial to acknowledge that the potential impact of polysubstance use on the interpretation of physiological signals associated with self-reported cannabis intoxication was not included. While ESM is used to collect information on the use of other substances, our analysis did not account for the effects of polysubstance use due to the limited scope of the study. The presence of polysubstance use could potentially confound the physiological signals attributed to marijuana.

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

JMIR AI 2025;4:e52270

Evaluating Online Cannabis Health Information for Thai Breast Cancer Survivors Using the Quality Evaluation Scoring Tool (QUEST): Mixed Method Study

Evaluating Online Cannabis Health Information for Thai Breast Cancer Survivors Using the Quality Evaluation Scoring Tool (QUEST): Mixed Method Study

However, the prevalence of cannabis use in Thailand increased from 2.2% in 2019 to 4.2% by 2021, following the legalization of cannabis for recreational use [14]. A study conducted in Northern Thailand showed that 40% of women with breast cancer had requested the use of medical cannabis from their physician, indicating an increasing interest in medical cannabis [15]. Moreover, a law was passed in 2019 which allowed the use of cannabis for medical purposes [14,16].

Thanarpan Peerawong, Tharin Phenwan, Meiko Makita, Sojirat Supanichwatana, Panupong Puttarak, Naowanit Siammai, Prakaidao Sunthorn

JMIR Cancer 2024;10:e55300

Medical Marijuana Documentation Practices in Patient Electronic Health Records: Retrospective Observational Study Using Smart Data Elements and a Review of Medical Records

Medical Marijuana Documentation Practices in Patient Electronic Health Records: Retrospective Observational Study Using Smart Data Elements and a Review of Medical Records

Since 1996, states across the United States have legalized cannabis for medical use [1]. The legalization of cannabis or medical marijuana (MMJ) adds another layer of complexity to comprehensive patient care, as treatment with MMJ is managed outside of traditional health care management and documentation systems [2]. In Pennsylvania, MMJ is not currently “prescribed”—rather, a physician with appropriate privileges must certify that a given patient has 1 of 24 serious medical conditions [3,4].

Donielle Beiler, Aanya Chopra, Christina M Gregor, Lorraine D Tusing, Apoorva M Pradhan, Katrina M Romagnoli, Chadd K Kraus, Brian J Piper, Eric A Wright, Vanessa Troiani

JMIR Form Res 2024;8:e65957

Discussions of Cannabis Over Patient Portal Secure Messaging: Content Analysis

Discussions of Cannabis Over Patient Portal Secure Messaging: Content Analysis

For patient messages, five primary content categories were coded: (1) correctly classified message (ie, the keyword which flagged the message as pertaining to a plant-based product), (2) message author (patient or nonpatient), (3) time of cannabis use, (4) reason for cannabis use, and (5) purpose of cannabis mention in message. “Time of cannabis” use codes were mutually exclusive. An exception was made if a message described the use of multiple different cannabis products.

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

Impact of Providing a Personalized Data Dashboard on Ecological Momentary Assessment Compliance Among College Students Who Use Substances: Pilot Microrandomized Trial

Impact of Providing a Personalized Data Dashboard on Ecological Momentary Assessment Compliance Among College Students Who Use Substances: Pilot Microrandomized Trial

Conversely, rates of daily cannabis use (20+ use occasions in the past 30 days) are at all-time highs, with 11% of young adults reporting daily use [1]. Pacing with increases in cannabis use in recent years, young adults are also increasingly reporting co-use of alcohol and cannabis use, with approximately one-quarter reporting past-year simultaneous use or use of both substances so that the effects overlap [2].

Ashley Linden-Carmichael, Samuel W Stull, Danny Wang, Sandesh Bhandari, Stephanie T Lanza

JMIR Form Res 2024;8:e60193

Association of Drugs for Sale on the Internet and Official Health Indicators: Darknet Parsing and Correlational Study

Association of Drugs for Sale on the Internet and Official Health Indicators: Darknet Parsing and Correlational Study

Each data entry was assigned one of 5 drug categories: opiates, cannabis, amphetamines, cocaine, or others. Within each data extract, we calculated the total sum of grams for all drugs and each category of interest (opiates, cannabis, and all drugs excluding cannabis) per region. These sums were then adjusted by dividing them by the population size of the respective regions.

Sergey Soshnikov, Svetlana Bekker, Bulat Idrisov, Vasiliy Vlassov

JMIR Form Res 2024;8:e56006

Examining the Popularity, Content, and Intersections With the Substance Abuse and Mental Health Services Administration’s Definition of Recovery in a Nonclinical Online Cannabis Cessation Community: Infodemiology Study of Reddit Posts

Examining the Popularity, Content, and Intersections With the Substance Abuse and Mental Health Services Administration’s Definition of Recovery in a Nonclinical Online Cannabis Cessation Community: Infodemiology Study of Reddit Posts

The prevalence of cannabis consumption and clinical diagnoses of cannabis use disorder (CUD) has increased in the past 2 decades [1-3]. The intensification in delta-9-tetrahydrocannabinol potency of cannabis products in recent years, expanding types of consumption modalities of high-potency products (eg, vaping, dabs, and edibles), and increased perceived acceptability of cannabis use increase the risk for greater use and dependence on cannabis [4-12].

Elyse J Thulin, Maureen A Walton, Erin E Bonar, Anne Fernandez

J Med Internet Res 2024;26:e47357

Examining the Impact of Simultaneous Alcohol and Cannabis Use on Alcohol Consumption and Consequences: Protocol for an Observational Ambulatory Assessment Study in Young Adults

Examining the Impact of Simultaneous Alcohol and Cannabis Use on Alcohol Consumption and Consequences: Protocol for an Observational Ambulatory Assessment Study in Young Adults

Alcohol and cannabis use are among the most commonly used substances in the United States. Rates of using both substances are particularly high among young adults [1], who also report the highest rates of simultaneous alcohol and cannabis use (ie, using alcohol and cannabis at the same time so that the effects overlap) [2]. Young adults (ie, aged 18-26 years) are the only age group for whom rates of cannabis use increased following the legalization of cannabis [3].

Rachel L Gunn, Jane Metrik, Nancy P Barnett, Kristina M Jackson, Sharon Lipperman-Kreda, Robert Miranda Jr, Timothy J Trull, Mary Ellen Fernandez

JMIR Res Protoc 2024;13:e58685

Patterns of Use and Withdrawal Syndrome in Dual Cannabis and Tobacco Users (DuCATA_GAM-CAT): Protocol for a Mixed Methods Study

Patterns of Use and Withdrawal Syndrome in Dual Cannabis and Tobacco Users (DuCATA_GAM-CAT): Protocol for a Mixed Methods Study

However, it is important to note that dual cannabis and tobacco use, or co-use, can manifest in various patterns such as (1) concurrent use, where both substances are consumed simultaneously in the form of joints, which is the most prevalent form of cannabis use in Europe [3,5,6]; (2) sequential concurrent use, involving the use of cannabis followed by tobacco or vice versa; (3) asynchronous concurrent use, characterized by cannabis and tobacco usage within the past month but not necessarily during the same

Judith Saura, Ariadna Feliu, Marta Enríquez-Mestre, Marcela Fu, Montse Ballbè, Yolanda Castellano, Margarida Pla, Nathalia Rosa, Petia Radeva, Elena Maestre-González, Carmen Cabezas, Joan Colom, Josep M Suelves, Silvia Mondon, Pablo Barrio, Magalí Andreu, Antònia Raich, Jordi Bernabeu, Jordi Vilaplana, Xavier Roca Tutusaus, Joseph Guydish, Esteve Fernández, Cristina Martínez

JMIR Res Protoc 2024;13:e58335