Predictors for recurrence of drug use among males on probation for methamphetamine use in Japan: a one-year follow-up study.

Background: Methamphetamine use is related to severe health, social, and criminal challenges. However, there is limited evidence regarding the factors associated with the recurrence of drug use among individuals who have used methamphetamine, particularly within populations involved in the criminal justice system. This study aimed to identify predictors of illicit drug use at a one-year follow-up among males in Japan who have used methamphetamine and are involved in the criminal justice system.

Reliability and Validity of the Japanese Version of the Internet Gaming Disorder Scale for Children (IGDS-C).

Aim: The Internet Gaming Disorder Scale is a 9-item screening instrument developed based on the diagnostic criteria for Internet Gaming Disorder (IGD) in the DSM-5. This study aimed to examine the reliability and validity of the Internet Gaming Disorder Scale for children (IGDS-C) in Japanese clinical and nonclinical populations.

Methods: The study included clinical outpatients aged 9-29 with problematic game use and nonclinical adolescents aged 12-18 who played online games at least once a week.

Sociodemographic profiles and determinants of relapse risks among people with substance use disorders in the Philippines: A survey in community and residential care settings.

Background: Methamphetamine use is a major social and health issue in the Philippines. Former president Rodrigo Duterte prioritized combating illicit drugs, and the government launched an anti-drug campaign. People with substance use disorders (SUD) receive treatment and care in the community or residential treatment at Treatment and Rehabilitation Centers (TRCs) established by the Department of Health.

Wearable Sensor and Mobile App-Based mHealth Approach for Investigating Substance Use and Related Factors in Daily Life: Protocol for an Ecological Momentary Assessment Study.

Background: Digital health technologies using mobile apps and wearable devices are a promising approach to the investigation of substance use in the real world and for the analysis of predictive factors or harms from substance use. Moreover, consecutive repeated data collection enables the development of predictive algorithms for substance use by machine learning methods.

Objective: We developed a new self-monitoring mobile app to record daily substance use, triggers, and cravings.

Development and validation of Tagalog versions of the Drug Abuse Screening Test-20 (DAST-20) and Stimulant Relapse Risk Scale (SRRS) for drug users in the Philippines.

Methamphetamine use is becoming a major social issue in the Philippines, and this has been attracting international interest. Understanding the characteristics of drug users and the severity of their drug use is an urgent requirement for promoting effective treatment and support; however, in the Philippines, a lack of screening and assessment tools with confirmed reliability and validity is a major obstacle in this regard. Therefore, the aim of this study is to develop Tagalog versions of the Drug Abuse Screening Test-20 (DAST-20), a drug-abuse screening tool used worldwide, and the Stimulant Relapse Risk Scale (SRRS), a tool for quantitatively evaluating relapse among stimulant users, and to confirm their validity and reliability.

Increasing important roles of child and adolescent psychiatrists in the treatment of gaming disorder: Current status in Japan.

Background: Digital gaming is the most common leisure activity among children and adolescents in Japan, especially in males. Playing online gaming has become more common among school-age children over the years. As a result, excessive online gaming in younger children has become a significant social problem in Japan.

Adolescent cannabis use and the later onset of bipolar disorder: protocol for a systematic review and meta-analysis of prospective cohort studies.

Background: Cannabis is used by adolescents worldwide. Adolescents are more susceptible to the psychological effects of cannabis because their brains are still developing. Cannabis use in adolescents has been reportedly associated with later onset of bipolar disorder.

Effect of stress management based on cognitive-behavioural therapy on nurses as a universal prevention in the workplace: a systematic review and meta-analysis protocol.

Introduction: The mental health status of nurses affects not only their well-being but also the organisational outcomes and the quality of patient care. Hence, stress management strategies are critical as a universal prevention measure that address an entire population and are not directed at a specific risk group to maintain nurses' mental health in the workplace. No systematic review or meta-analysis has been conducted to evaluate the effect of cognitive-behavioural therapy (CBT) that specifically focuses on universal prevention.

Effects of a web-based relapse prevention program on abstinence: Secondary subgroup analysis of a pilot randomized controlled trial.

Aim: The effect of a web-based relapse prevention program might vary depending on a specific population if the study participants included drug users with various characteristics. This secondary analysis explored subgroups among Japanese drug users that may benefit from a web-based relapse prevention program.

Methods: Outpatients with drug use disorder (n = 48) were randomly assigned to an 8-week, six-session web-based relapse prevention program (intervention group) or web-based self-monitoring only (control group).

Dental characteristics associated with methamphetamine use: analysis using forensic autopsy data.

Background: Little is known regarding the oral conditions in nonelderly methamphetamine users, such as the presence of dental caries and periodontitis. We aimed the oral conditions between methamphetamine users and non-users stratified by age groups.

Methods: In this cross-sectional study, computed tomography images were obtained from 3,338 decedents at two forensic medicine departments in Japan.

Author's Reply to COMMENTARY ON "Adolescent Work Values and Drug Use in Adulthood: A Longitudinal Prospective Cohort Study".

This is the author's reply to the COMMENTARY on our study "Adolescent Work Values and Drug Use in Adulthood: A Longitudinal Prospective Cohort Study" (Takano et al., Substance Use and Misuse 2021; 65 (10): 1483-1492), which pointed out that racial/ethnic groups, adolescent resilience (ability to cope with steess, etc.), and educational attainment might influence the association between adolescent work values and drug use in adulthood as mediate or moderate factors.

Ifenprodil for the treatment of methamphetamine use disorder: An exploratory, randomized, double-blind, placebo-controlled trial.

Aim: No effective pharmacological interventions have been developed for patients with methamphetamine use disorder. Ifenprodil is a blocker of G protein-activated inwardly rectifying potassium channels, which play a key role in the mechanism of action of addictive substances. We conducted a randomized, double-blind, exploratory, dose-ranging, placebo-controlled trial to examine the clinical efficacy of ifenprodil for the treatment of methamphetamine use disorder.

The effectiveness of a web-based intervention for Japanese adults with problem drinking: An online randomized controlled trial.

Aims: This study aimed (1) to delineate how a web-based intervention affects the problem drinking behaviors of Japanese adults and (2) to examine the moderating effects of disorder levels and alcohol outcome expectancies on intervention outcomes.

Methods: We implemented an online two-armed parallel-group randomized controlled trial with 546 Japanese adults. Adults aged 20 years or older and who scored eight or higher on the Alcohol Use Disorder Identification Test were included in this study.

Outpatient treatment following alcohol screening at health checkups and change in drinking patterns among excessive drinkers with lifestyle-related diseases.

Screening and brief interventions have been implemented in primary care settings to reduce excessive drinking. However, the effectiveness of screening and brief interventions within a health checkup setting is unclear. We assessed the effectiveness of general treatment for lifestyle-related diseases following screening for alcohol consumption at health checkups, using data on medical claims and health checkups.

Adolescent Work Values and Drug Use in Adulthood: A Longitudinal Prospective Cohort Study.

Personal values have been considered as a predictor of drug use. We examined the association between work values in adolescence and drug use in adulthood using 23-year longitudinal data from the Youth Development Study. Partial extrinsic and intrinsic work values predicted cannabis use in the past year after adjusting for sociodemographic variables and alcohol and tobacco use at baseline.

A Mixed-Methods Evaluation of Usability and Acceptability of Web-Based Relapse Prevention and Self-Monitoring Program: Secondary Analysis of a Pilot Randomized Controlled Trial.

This secondary analysis of a pilot randomized controlled trial assessed the usability and acceptability of a web-based relapse prevention and self-monitoring program, which was newly developed for Japanese drug users. We analyzed quantitative and qualitative data using a mixed-method approach among 43 study participants. We assessed the usability of the programs using the Web Usability Scale (WUS) and satisfaction and acceptance using the Client Satisfaction Questionnaire 8-item version (CSQ-8).

Association between energy drink consumption and substance use in adolescence: A systematic review of prospective cohort studies.

Background: It is unclear whether energy drink (ED) consumption is associated with substance use (SU) in adolescence. The purpose of this study is to clarify the association.

Methods: A systematic review was conducted using a wide range of electronic bibliographic databases to search for published prospective cohort studies on the topic from inception to 14th August 2019.

Effect of a web-based relapse prevention program on abstinence among Japanese drug users: A pilot randomized controlled trial.

Background: Internet-based intervention could help drug users recover from drug dependence. This study evaluated the effectiveness of a newly developed web-based relapse prevention program (e-SMARPP) for people with a drug problem, including the use of methamphetamine, in Japan.

Methods: The study was a pilot randomized controlled trial comprised of 48 psychiatric outpatients diagnosed with drug use disorder.

Reliability and validity of the Japanese version of the INSPIRE measure of staff support for personal recovery in community mental health service users in Japan.

Background: Supporting personal recovery in people with mental health difficulties is central to mental health services. This study aimed to develop the Japanese version of INSPIRE and Brief INSPIRE measure of staff support for personal recovery and to evaluate its reliability and validity.

Methods: A questionnaire survey was conducted from October to December 2015.

Effects of an internet-based cognitive behavioral therapy (iCBT) intervention on improving depressive symptoms and work-related outcomes among nurses in Japan: a protocol for a randomized controlled trial.

Background: Depression is a major problem among nurses; hence, it is important to develop a primary prevention strategy to manage depression among nurses. This randomized controlled trial (RCT) study aims to investigate the effects of a newly developed internet-based cognitive behavioral therapy (iCBT) program on depressive symptoms, measured at baseline and three- and six-month follow-ups, among nurses in Japan.

Methods: Nurses working at three university hospitals, one public hospital, and twelve private hospitals who meet inclusion criteria will be recruited and randomized either to the intervention group or the control group (planned N = 525 for each group).

Factors associated with long-term prescription of benzodiazepine: a retrospective cohort study using a health insurance database in Japan.

Objectives: Current clinical guidelines discourage long-term prescription of benzodiazepines and Z-drugs (BZD); however, the practice continues to exist. The aim of this study was to investigate the proportion of long-term BZD prescriptions and its risk factors.

Design: Retrospective cohort study using a health insurance database.

Reliability and validity of the Japanese version of the Mental Health Self-management Questionnaire among people with mental illness living in the community.

Background: Self-management is an important factor in maintaining and promoting mental health and recovery from mental health challenges. Thus, it is important to assess and support mental health self-management. In this study, we aimed to develop the Japanese version of the Mental Health Self-management Questionnaire (MHSQ-J), a scale to assess mental health self-management strategy, and clarify its psychometric properties among people with mental illness living in Japan.