Readable research linked to original sources
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Browse normalized, publication-ready research with direct links to its evidence and source.
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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
Loading articles data…
Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
6 articles
Newest firstWe clarify Dr. Narita's concerns by replacing subjective wording with data-based statements, emphasizing the descriptive-not causal-nature of our analysis, and noting that logistic regression was exploratory. Our findings show both progression and non-progression pathways, indicating no single dominant gateway pattern among Japanese cannabis users.
Open article record in new tab ↗Aim To examine trends in the lifetime prevalence of controlled drug use among Japanese junior high school students (aged 12-15 years) between 2016 and 2024 and to identify associated sociodemographic, behavioral, and psychosocial factors. Methods We analyzed data from 214,011 students across four nationwide surveys. The outcome was lifetime use of controlled drugs, including marijuana, solvents, methamphetamine, a…
Aim In Japan, drug-related issues are diverse, and the use of cannabis and pharmaceuticals is rising. This study aimed to clarify the differences in clinical characteristics and treatment resource utilization by drug type. Methods We analyzed data from 891 individuals from the 2024 Nationwide Psychiatric Hospital Survey, which comprised 368 who used methamphetamine or cannabis (illegal drug group) and 523 who used…
Aim Cannabis has historically been used for medicinal and industrial purposes, but is strictly regulated worldwide due to the psychoactive effects of THC. In Japan, cannabis is frequently labeled a "gateway drug," yet strong causal evidence for progression to other substances is limited. This study investigates whether cannabis acts as a gateway drug among Japanese users. Methods An anonymous online survey was con…
Aim To determine the risk factors for cannabis use disorders and cannabis psychosis in Japan based on a 2021 online survey among Japanese users of social network services. Methods The 3142 respondents who had used cannabis within the preceding year were categorized into two groups based on the development of cannabis use disorder and/or cannabis psychosis. Analyses were performed to determine these conditions' ris…
Open article record in new tab ↗Aim The objective of the current study was to identify risk factors that affect the onset of dependence and chronic psychosis due to cannabis use. Methods We examined clinical genetic factors, psychiatric disorders prior to cannabis use, starting age of cannabis use, duration and frequency of cannabis use, types of cannabis products used, combined use of other psychoactive substances, and the psychiatric diagnosis…
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