How Anti-Substance Abuse Campaigns Influence Substance Abusers' Psychological Health in Chinese Communities: The Mediating Role of Perceived Stigma.

The current study explored how anti-substance abuse campaigns influence substance abusers' psychological health through the perception of stigma. The study is based on a sample of substance abusers who received community-based treatments ( = 3457) and used structural equation modeling to estimate the role of perceived stigma in mediating between perceptions of overstatement of harm conveyed in anti-substance abuse campaigns and psychological outcomes. The results revealed that substance abusers' perception of overstatement of the harm caused by the substances and substance abusers enhanced their perceived stigma and impaired their psychological health in terms of anxiety, depression, and somatization, through both direct and indirect pathways. The results advocate for proper strategies in the design of anti-substance abuse campaigns. Possible initiatives to reduce substance abusers' perceived stigma are recommended.