{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T22:54:22Z","timestamp":1784242462997,"version":"3.55.0"},"reference-count":12,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,9,20]],"date-time":"2025-09-20T00:00:00Z","timestamp":1758326400000},"content-version":"vor","delay-in-days":19,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T00:00:00Z","timestamp":1756684800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003478","name":"Ministry of Health, Labour and Welfare","doi-asserted-by":"publisher","award":["23KC2006"],"award-info":[{"award-number":["23KC2006"]}],"id":[{"id":"10.13039\/501100003478","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Neuropsychopharm Rep"],"published-print":{"date-parts":[[2025,9]]},"abstract":"ABSTRACT<\/jats:title>\n \n Purpose<\/jats:title>\n This study aims to identify the characteristics of patients with cannabis use disorder and to determine whether the challenges in treating cannabis use disorder stem from the pharmacological properties of cannabis as an abused substance or from other contributing factors.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n The subjects of this study were the 208 male cases of methamphetamine\u2010related mental disorders (MAP group) and 82 male cases of cannabis\u2010related mental disorders (CAN group), which drawn from the \u201c2024 Nationwide Survey on the Actual Conditions of Drug\u2010Related Mental Disorders in Psychiatric Hospitals in Japan.\u201d Clinical variables were compared between the two groups, and logistic regression analyses were conducted to examine the use of medical and nonmedical resources.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n The CAN group was found to be younger, to have fewer histories of drug\u2010related criminal offenses, incarceration in correctional facilities, or comorbid psychiatric disorders, compared to the MAP group, and to exhibit less severe forms of substance use disorder and have less experience participating in self\u2010help groups or utilizing private recovery support facilities. Logistic regression analyses of the use of self\u2010help groups and private recovery support facilities indicated that the utilization of these nonmedical resources was more strongly associated with older age and greater severity of substance use disorder than with the specific type of substance abused.<\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n Recently, an increasing number of young patients in Japan have been arrested for cannabis\u2010related offenses and seek addiction treatment. There is growing concern that current nonmedical support resources may not adequately address the specific needs of these individuals.<\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/npr2.70051","type":"journal-article","created":{"date-parts":[[2025,9,20]],"date-time":"2025-09-20T11:35:01Z","timestamp":1758368101000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Clinical Characteristics of Patients With Cannabis\u2010Related Mental Disorders and an Examination of Factors Influencing Their Access to Medical and Nonmedical Resources: Comparison of Methamphetamine\u2010Related Mental Disorders"],"prefix":"10.1002","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7076-2161","authenticated-orcid":false,"given":"Toshihiko","family":"Matsumoto","sequence":"first","affiliation":[{"name":"Department of Drug Dependence Research, National Institute of Mental Health National Center of Neurology and Psychiatry Kodaira Japan"},{"name":"Department of Psychiatry, Center Hospital National Center of Neurology and Psychiatry Kodaira Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2286-8663","authenticated-orcid":false,"given":"Takashi","family":"Usami","sequence":"additional","affiliation":[{"name":"Department of Drug Dependence Research, National Institute of Mental Health National Center of Neurology and Psychiatry Kodaira Japan"},{"name":"Fukuoka Prefectural Psychiatric Center Dazaifu Hospital Dazaifu Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akiho","family":"Nishimura","sequence":"additional","affiliation":[{"name":"Department of Drug Dependence Research, National Institute of Mental Health National Center of Neurology and Psychiatry Kodaira Japan"},{"name":"Department of Psychiatry, Center Hospital National Center of Neurology and Psychiatry Kodaira Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sayako","family":"Higuchi","sequence":"additional","affiliation":[{"name":"Department of Drug Dependence Research, National Institute of Mental Health National Center of Neurology and Psychiatry Kodaira Japan"},{"name":"Department of Forensic Psychiatry, Center Hospital National Center of Neurology and Psychiatry Kodaira Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyoji","family":"Okita","sequence":"additional","affiliation":[{"name":"Department of Drug Dependence Research, National Institute of Mental Health National Center of Neurology and Psychiatry Kodaira Japan"},{"name":"Department of Psychiatry, Center Hospital National Center of Neurology and Psychiatry Kodaira Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8906-6230","authenticated-orcid":false,"given":"Takuya","family":"Shimane","sequence":"additional","affiliation":[{"name":"Department of Drug Dependence Research, National Institute of Mental Health National Center of Neurology and Psychiatry Kodaira Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,20]]},"reference":[{"key":"e_1_2_12_2_1","first-page":"182","volume-title":"2024 Crime White Paper","author":"Ministry of Justice","year":"2024"},{"key":"e_1_2_12_3_1","unstructured":"T.Matsumoto T.Usami K.Okita et\u00a0al. \u201c2024 Nationwide Survey on the Actual Conditions of Drug\u2010Related Mental Disorders in Psychiatric Hospitals in Japan. Fiscal Year 2024 Health Labour Research Grant From the Ministry of Health Labour and Welfare Pharmaceutical and Medical Device Regulatory Science Policy Research Project \u201cNational Survey on the Current Status of Substance Abuse and Dependence and Research on the Abuse of Cannabis and Other Substances Based on Recent Trends (Principal Investigator: Takuya Shimane)\u201d Research Report \u201d(2025) 99\u2013154. (in Japanese)."},{"key":"e_1_2_12_4_1","first-page":"43","article-title":"Cannabis\u2010Related Disorder in Psychiatric Care","volume":"35","author":"Tanibuchi Y.","year":"2020","journal-title":"Seishinka\u2010Chiryogaku"},{"key":"e_1_2_12_5_1","first-page":"186","article-title":"Chapter\u00a08. Substance Use Disorder and Addictive Behaviors. 3. \u2018Marijuana Is Not a Drug, It's a Plant\u2019. A Case With Cannabis Use Disorder Who Reluctantly Agreed to Seek Treatment After Being Persuaded by Those Around Him","volume":"37","author":"Matsumoto T.","year":"2022","journal-title":"Seishinka\u2010Chiryogaku"},{"key":"e_1_2_12_6_1","first-page":"1103","article-title":"New Treatment Program for Drug Dependence \u2018SMARPP\u2019: Challenge of Constructing a Consistent Support System Among Forensic, Medical, and Community Sections","volume":"54","author":"Matsumoto T.","year":"2012","journal-title":"Seishin Igaku"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/pcn.12084"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/npr2.12307"},{"key":"e_1_2_12_9_1","volume-title":"The ICD\u201010 Classification of Mental and Behavioural Disorders: Clinical Descriptions and Diagnostic Guidelines","author":"World Health Organization","year":"1992"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1080\/10826084.2020.1833930"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/npr2.12357"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.drugalcdep.2010.02.019"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1176\/appi.books.9780890425596"}],"container-title":["Neuropsychopharmacology Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/npr2.70051","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/npr2.70051","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/npr2.70051","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T18:28:29Z","timestamp":1772994509000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/npr2.70051"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9]]},"references-count":12,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2025,9]]}},"alternative-id":["10.1002\/npr2.70051"],"URL":"https:\/\/doi.org\/10.1002\/npr2.70051","archive":["Portico"],"relation":{},"ISSN":["2574-173X","2574-173X"],"issn-type":[{"value":"2574-173X","type":"print"},{"value":"2574-173X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,9]]},"assertion":[{"value":"2025-05-12","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-08-28","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-09-20","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70051"}}