Optimizing Workplace Digital Mental Health Interventions: Systematic Review and Meta-Analysis
Elizabeth Stratton1,2, Richard W Morris1,2, Alyssa Milton1,2
1Faculty of Medicine and Health, Central Clinical School, University of Sydney, Sydney, NSW, Australia.
Journal of Medical Internet Research
|November 17, 2025
Summary
Digital mental health interventions (DMHIs) show varied efficacy, but specific features like mindfulness and stress management approaches, expert design, and person support significantly enhance benefits for depression, anxiety, and stress in the workplace. These findings guide more effective DMHI development.
Area of Science:
- Digital Mental Health Interventions (DMHIs)
- Workplace Mental Health
- Evidence-Based Design
Background:
- Digital mental health interventions (DMHIs) are increasingly used in workplaces for common mental health issues.
- Existing meta-analyses show significant heterogeneity in DMHI efficacy, indicating a need to understand contributing factors.
- No prior systematic evaluation has compared the impact of specific DMHI content and design features on efficacy.
Purpose of the Study:
- To determine if intervention design, therapeutic approaches, and content features are associated with greater efficacy in randomized controlled trials (RCTs) of DMHIs.
- To identify specific characteristics that enhance the effectiveness of workplace DMHIs for depression, anxiety, and stress.
Main Methods:
- Systematic review of RCTs evaluating DMHIs for depression, anxiety, or stress in employed adults (2004-2024).
- Bayesian multilevel meta-regression to analyze pooled effect sizes and compare intervention characteristics against sample demographics.
- Evaluation of intervention influences using posterior probabilities (pp) and evidence ratios (ERs); risk of bias assessed using Cochrane Risk of Bias tool (version 2).
Main Results:
- 81 RCTs (25,500 participants) showed small but significant pooled effect sizes for depression, anxiety, and stress.
- Intervention characteristics explained more outcome heterogeneity than sample characteristics.
- Mindfulness and stress management approaches outperformed CBT for anxiety/stress; person support, expert design, video content, feedback scores, and reminder texts enhanced therapeutic benefit.
Conclusions:
- Workplace DMHI effectiveness is significantly influenced by therapeutic approach, design, and content, varying by targeted outcome.
- Mindfulness, stress management, expert involvement, person support, and specific content features (video, feedback, reminders) demonstrate greater therapeutic benefit.
- Findings advocate for a deliberate, evidence-informed approach to DMHI design and implementation, moving beyond assumptions of benefit without evaluation.
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