Evaluating Postvention Services and the Acceptability of Models of Postvention: A Systematic Review.

Suicide is a major public health issue that increases the risk of suicide for those bereaved by suicide themselves. There is a lack of evaluation of the effectiveness and acceptability of suicide postvention services supporting those bereaved by suicide. This review aimed to assess evaluations of postvention services supporting those bereaved by suicide and the acceptability of methods of postvention. Searches of peer-reviewed literature identified 36 studies for inclusion. 22 studies evaluated specific postvention services, 14 evaluated models of postvention. Using the Mixed Methods Appraisal Tool, mixed-methods and qualitative postvention evaluation and acceptability research produce high-quality studies. Studies rated as low quality reflect poor reporting, rather than ineffective services. Further evaluation of community-based postvention services within the UK is needed. This would evidence that services in the UK are effective in supporting those bereaved by suicide. Evaluation would benefit services in accessing funding, improve service development and provide holistic support.