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Wang D, Zhou Y, Chen S, Wu Q, He L, Wang Q, Hao Y, Liu Y, Peng P, Li M, Liu T, Ma Y. 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. Soc Psychiatry Psychiatr Epidemiol 2024; 59:1883-1892. [PMID: 38411725 DOI: 10.1007/s00127-024-02621-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/11/2024] [Indexed: 02/28/2024]
Abstract
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.
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Affiliation(s)
- Dongfang Wang
- Department of Sport and Health Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
- Department of Psychiatry and Psychotherapy, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Yanan Zhou
- Department of Psychiatry, Hunan Brain Hospital (Hunan Second People's Hospital), Changsha, China
| | - Shubao Chen
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qiuxia Wu
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Li He
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qianjin Wang
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yuzhu Hao
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yueheng Liu
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Pu Peng
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Manyun Li
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Tieqiao Liu
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yuejiao Ma
- 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.
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Yu BCL, Chio FHN, Mak WWS, Corrigan PW, Chan KKY. Internalization process of stigma of people with mental illness across cultures: A meta-analytic structural equation modeling approach. Clin Psychol Rev 2021; 87:102029. [PMID: 34058604 DOI: 10.1016/j.cpr.2021.102029] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/11/2021] [Accepted: 04/13/2021] [Indexed: 12/24/2022]
Abstract
This meta-analytic study synthesized findings from 108 independent data sets across 22 cultures to investigate whether the stigma internalization model (the internalization of experienced stigma and perceived stigma to self-stigma) is associated with well-being and recovery of people with mental illness. We also examined the moderating role of collectivism in the internalization process. Results of the meta-analytic structural equation modeling suggested that self-stigma is a significant mediator in the relationships between experienced stigma and perceived stigma with well-being and recovery variables (indirect effects = 0.02 to -0.16). Experienced and perceived stigma had significant direct effects on well-being and recovery variables (Bs = 0.07 to -0.21, p < 0.05), suggesting that both external (e.g., public stigma) and internal (i.e., self-stigma) influences of stigma work concurrently to affect recovery and well-being of people with mental illness. The results of the mixed effect three-level meta-analytic models showed that collectivism significantly moderated the relationship between experienced and perceived stigma with self-stigma (Bs = 0.06 to 0.11, p < 0.05). This implied that the more collectivistic a culture is, the stronger the correlation between experienced and perceived stigma with self-stigma. Implications to stigma reduction approaches were discussed.
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Affiliation(s)
- Ben C L Yu
- Department of Psychology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
| | - Floria H N Chio
- Department of Counselling and Psychology, Hong Kong Shue Yan University, North Point, Hong Kong
| | - Winnie W S Mak
- Department of Psychology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong.
| | - Patrick W Corrigan
- Department of Psychology, Illinois Institute of Technology, Chicago, United States
| | - Kelly K Y Chan
- Department of Psychology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
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