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Machine Learning–Based Prediction of Substance Use in Adolescents in Three Independent Worldwide Cohorts: Algorithm Development and Validation Study

Machine Learning–Based Prediction of Substance Use in Adolescents in Three Independent Worldwide Cohorts: Algorithm Development and Validation Study

Using the KYRBS, we developed a predictive model to extrapolate the behavioral patterns of Korean adolescents regarding substance use. Due to rigorous substance regulations and law enforcement measures in South Korea, accessibility and consumption of substances are notably limited [18]. Consequently, the number of instances representing substance use within the KYRBS was sparse (n=12,803, 1.17%).

Soeun Kim, Hyejun Kim, Seokjun Kim, Hojae Lee, Ahmed Hammoodi, Yujin Choi, Hyeon Jin Kim, Lee Smith, Min Seo Kim, Guillaume Fond, Laurent Boyer, Sung Wook Baik, Hayeon Lee, Jaeyu Park, Rosie Kwon, Selin Woo, Dong Keon Yon

J Med Internet Res 2025;27:e62805

Drug Use Behaviors and the Risk of HIV Infection Among Drug Users in China Between 2014 and 2021: Cross-Sectional Study

Drug Use Behaviors and the Risk of HIV Infection Among Drug Users in China Between 2014 and 2021: Cross-Sectional Study

The decrease in reflexes and planned choices associated with substance use may also lead to risky sexual intercourse [10,11]. Traceability studies on the transmission of HIV/AIDS have found that the paths of HIV infection and transmission among users of new types of drugs are mostly high-risk sexual behaviors after drug use [12].

Jiaqi Lv, Yangfan Jia, Chunhui Yan, Xingliang Zhang, Ke Xu, Junfang Xu

JMIR Public Health Surveill 2024;10:e56958

Using the Preparation Phase of the Multiphase Optimization Strategy to Design an Antiextremism Program in Bahrain: Formative and Pilot Research

Using the Preparation Phase of the Multiphase Optimization Strategy to Design an Antiextremism Program in Bahrain: Formative and Pilot Research

We adapted a measure of resistance skills from a previous evaluation of the keepin’ it REAL substance use prevention program for elementary and middle school students [25]. In the current study, students rated the extent to which they engaged in different behaviors when they do something (eg, think carefully about their choices). We recoded items so that higher scores indicated more thoughtful or less impulsive decision-making (1 = Strongly Disagree, 4 = Strongly Agree).

Kelly Rulison, GracieLee Weaver, Jeffrey Milroy, Emily Beamon, Samantha Kelly, Ali Ameeni, Amina Juma, Fadhel Abualgasim, Jaafar Husain, David Wyrick

JMIR Form Res 2024;8:e58322

Barriers to, and Facilitators of, Checking Drugs for Adulterants in the Era of Fentanyl and Xylazine: Qualitative Study

Barriers to, and Facilitators of, Checking Drugs for Adulterants in the Era of Fentanyl and Xylazine: Qualitative Study

This includes the use or distribution of FTS and XTS, which indicate the presence of fentanyl or xylazine, respectively, as well as Fourier-transform infrared spectroscopy (FTIR), which can identify all the chemicals in a substance in proportion to the total sample (eg, what percentage of a checked sample is fentanyl and what percentage is xylazine).

Ian David Aronson, Mary-Andrée Ardouin-Guerrier, Juan Esteban Baus, Alex S Bennett

JMIR Form Res 2024;8:e56755

Identifying Game-Based Digital Biomarkers of Cognitive Risk for Adolescent Substance Misuse: Protocol for a Proof-of-Concept Study

Identifying Game-Based Digital Biomarkers of Cognitive Risk for Adolescent Substance Misuse: Protocol for a Proof-of-Concept Study

In 2021 alone, over 1 in 5 adolescents aged 12-17 years misused substances (illicit drugs and alcohol or tobacco products) [2] and 2 million adolescents had a substance use disorder [2]. Adolescent substance misuse, defined as “the unhealthy use of alcohol or drugs to relieve stress, alter reality or bring about pleasure” [3], increases the risk of developing a substance use disorder.

Kammarauche Aneni, Ching-Hua Chen, Jenny Meyer, Youngsun T Cho, Zachary Chase Lipton, Saatvik Kher, Megan G Jiao, Isabella Gomati de la Vega, Feza Anaise Umutoni, Robert A McDougal, Lynn E Fiellin

JMIR Res Protoc 2023;12:e46990

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)

Prospective studies have shown that at the beginning of treatment for FEP, cannabis is the most frequently abused drug (~50%); about 3 times more participants with a comorbid substance use disorder (including CUD) are male (78%-86%) than female and that persistent cannabis use is associated with poor clinical and functional outcomes [10-15].

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

Understanding Design Approaches and Evaluation Methods in mHealth Apps Targeting Substance Use: Protocol for a Systematic Review

Understanding Design Approaches and Evaluation Methods in mHealth Apps Targeting Substance Use: Protocol for a Systematic Review

More than 275 million people worldwide used substances in 2021, with problematic substance use costing the lives of half a million people globally in 2019 [1], an increase of more than 20% in the past 10 years. Further, substance use often has far-reaching consequences on human health and well-being, resulting in the loss of 18 million years of healthy life [1].

Sahiti Kunchay, Ashley N Linden-Carmichael, Stephanie T Lanza, Saeed Abdullah

JMIR Res Protoc 2022;11(7):e35749

Perceived Attitudes About Substance Use in Anonymous Social Media Posts Near College Campuses: Observational Study

Perceived Attitudes About Substance Use in Anonymous Social Media Posts Near College Campuses: Observational Study

Together, these findings demonstrate the large variety of substance-related topics discussed on social media sites, which can be a source of data for substance use research, and the complexities of the discussions, which are dependent on the substance mentioned and the perspective of the poster.

Alexis S S. Hammond, Michael J Paul, Joseph Hobelmann, Animesh R Koratana, Mark Dredze, Margaret S Chisolm

JMIR Ment Health 2018;5(3):e52