PMID- 38411725 OWN - NLM STAT- Publisher LR - 20240227 IS - 1433-9285 (Electronic) IS - 0933-7954 (Linking) DP - 2024 Feb 27 TI - Employing Bayesian analysis to establish a cut-off point and assess stigma prevalence in substance use disorder: a comprehensive study of the Chinese version of the Substance Use Stigma Mechanism Scale. LID - 10.1007/s00127-024-02621-5 [doi] AB - PURPOSE: In China, individuals with substance use disorders (SUD) face severe stigma, but reliable stigma assessment tool is lacking. Therefore, this study aimed to validate the Chinese version of the Substance Use Stigma Mechanism Scale (SU-SMS-C) and set its cut-off point. METHODS: We recruited 1005 individuals with SUDs from Chinese rehabilitation centers. These participants completed a battery of questionnaires that included the SU-SMS-C, The Multidimensional Scale of Perceived Social Support (MSPSS), Center for Epidemiologic Studies Depression Scale (CES-D), General Self-Efficacy Scale (GSES), and Perceived Devaluation and Discrimination (PDD). Confirmatory factor analysis was used to assess the construct validity of the scale. Additionally, the Naive Bayes classifier was used to establish the cut-off point for the SU-SMS-C. We additionally explored the correlation between patient demographic characteristics and stigma. RESULTS: A confirmatory factor analysis was utilized, revealing a second-order five-factor model. Based on the Naive Bayes classifier, the area under the receiver operating characteristic (AUCROC) of 0.746, the cut-off point for the SU-SMS-C was established at 44.5. The prevalence of stigma observed in the study population was 49.05%. Significant disparities were observed in the distribution of stigma across genders, with males experiencing more pronounced stigma than females. Moreover, patients consuming different primary substances reported diverse levels of stigma. Notably, those primarily using heroin endured a higher degree of stigma than users of other substances. CONCLUSION: The study is the first to identify a cut-off point for the SU-SMS-C by Naive Bayes classifier, bridging a major gap in stigma measurement research. SU-SMS-C may help treat and manage SUDs by reducing stigma. CI - (c) 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany. FAU - Wang, Dongfang AU - Wang D AD - Department of Sport and Health Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany. AD - Department of Psychiatry and Psychotherapy, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany. FAU - Zhou, Yanan AU - Zhou Y AD - Department of Psychiatry, Hunan Brain Hospital (Hunan Second People's Hospital), Changsha, China. FAU - Chen, Shubao AU - Chen S AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Wu, Qiuxia AU - Wu Q AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - He, Li AU - He L AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Wang, Qianjin AU - Wang Q AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Hao, Yuzhu AU - Hao Y AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Liu, Yueheng AU - Liu Y AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Peng, Pu AU - Peng P AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Li, Manyun AU - Li M AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Liu, Tieqiao AU - Liu T AD - Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China. FAU - Ma, Yuejiao AU - Ma Y AD - Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen Institute of Mental Health, Shenzhen Mental Health Center, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen, Guangdong, 518020, China. yuejiaoma0@outlook.com. LA - eng PT - Journal Article DEP - 20240227 PL - Germany TA - Soc Psychiatry Psychiatr Epidemiol JT - Social psychiatry and psychiatric epidemiology JID - 8804358 SB - IM OTO - NOTNLM OT - Cut-off point OT - Naive Bayes classifier OT - Stigma OT - Substance Use Stigma Mechanism Scale (SU-SMS-C) OT - Substance use disorder (SUD) EDAT- 2024/02/27 12:46 MHDA- 2024/02/27 12:46 CRDT- 2024/02/27 11:07 PHST- 2023/08/04 00:00 [received] PHST- 2024/01/11 00:00 [accepted] PHST- 2024/02/27 12:46 [medline] PHST- 2024/02/27 12:46 [pubmed] PHST- 2024/02/27 11:07 [entrez] AID - 10.1007/s00127-024-02621-5 [pii] AID - 10.1007/s00127-024-02621-5 [doi] PST - aheadofprint SO - Soc Psychiatry Psychiatr Epidemiol. 2024 Feb 27. doi: 10.1007/s00127-024-02621-5.