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Background: Previous research indicates disparities in the care of bereaved parents and siblings following a stillbirth in the family. The aim of this systematic review was to assess the effects of interventions aimed at reducing psychological distress among parents or siblings in high-income countries after experiencing a stillbirth.

Methods: The databases CINAHL, Medline, PsycInfo, Cochrane Library, and EMBASE were searched in August 2022.

Results: Four intervention studies from the United States (US), the United Kingdom (UK), Finland, and Australia, met the inclusion criteria. The interventions comprised a perinatal grief support team; a perinatal counselling service; a grief support program; and a support package including contacts with peer supporters and health care staff. No studies of interventions for siblings were found. The results could not be synthesised due to disparities in interventions and outcome measures. The risk of bias was assessed as high in all four studies and the certainty for all outcomes was rated as very low.

Conclusion: More controlled trials with rigorous methods are needed to evaluate the effect of bereavement support interventions in parents and siblings after stillbirth. Future studies should include a core outcome set to make them more comparable. Most of the studies in this review were assessed to have an overall high risk of bias, mainly due to problems with missing outcome data; thus, future studies could specifically target this problem.