The effectiveness of mental illness stigma-reduction interventions: A systematic meta-review of meta-analyses

The high prevalence of stigma toward mental illnesses contributes to the worsened health and quality of life for people with mental illnesses. Different stigmas (e.g., public, self) lead to social discrimination, social isolation, and reduce the likelihood that people with mental illnesses receive adequate treatment for their conditions. In response to this, numerous social interventions have been developed to help combat the spread of stigma. Subsequently, researchers have conducted meta-analyses to determine the effectiveness of different interventions for reducing stigma toward mental illness. To date, no efforts have been made to synthesize these meta-analyses to identify gaps in the stigma-reduction literature, assess the quality of extant literature, and to identify trends in programming efforts. The present study conducted a systematic meta-review of 19 meta-analyses, drawing from the Health Stigma and Discrimination Framework, to address these gaps. Results showed that the included meta-analyses were of relatively poor quality and that interventions primarily addressed either public or self-stigma, while overlooking other stigmas. Further, meta-analyses primarily assessed the effects of contact-promotion or educational intervention strategies. There was little evidence to suggest that interventions were effective longitudinally. Implications for future research and intervention development are discussed.