Effects of mindfulness-based interventions on reducing psychological distress among nurses: A systematic review and meta-analysis of randomized controlled trials

PURPOSE: Nurses increasingly use mindfulness as an effective mental health intervention to reduce psychological distress. The effectiveness of mindfulness-based interventions remains inconclusive, which may lead to implementation of interventions in an inefficient or ineffective manner. This study aimed to examine the effects of mindfulness-based interventions on reducing stress, anxiety, and depression among nurses.

DESIGN: Systematic review and meta-analysis.

METHODS: Randomized controlled trials (RCTs) were searched using six databases published through May 20, 2023, which evaluated the effects of mindfulness-based interventions on reducing psychological distress among nurses. To assess the quality of methodology included in the RCTs, version 2 of the Cochrane risk-of-bias instrument for RCTs with five domains was used. Standardized mean difference (SMD) with 95% confidence interval (CI) were calculated using the random-effects model in the meta-analyses. Publication bias was assessed using Egger's regression test. Further, the robustness effect size of the pooled analysis was assessed using leave-one-out sensitivity analysis.

FINDINGS: A total of 16 RCTs were included in the final analysis. Overall, the modalities appeared to alleviate stress (pooled SMD: -0.50 [95% CI: -0.82 to -0.18]; p < 0.001) and depression (pooled SMD: -0.42 [95% CI: -0.78 to -0.06]; p = 0.02) among nurses.

CONCLUSION: Mindfulness-based interventions appear to alleviate stress and depression in nurses. Future research evaluating mindfulness-based interventions among working nurses with more rigorous methodological and larger sample size.

CLINICAL RELEVANCE: Support for nurses' mental health must be included while implementing personal and professional development plans.