Who Guidelines On Mental Health At Work

Comprehensive evidence-based guidelines covering mental health promotion, prevention, and support across work settings, with specific recommendations for health, humanitarian, and emergency workers. Establishes the global economic cost of depression and anxiety at US$1 trillion annually in lost productivity, and provides ROI data for specific interventions — including a £9.98 return per £1 invested in manager mental health training and a 138% ROI on stress management interventions across 250,000+ workers in 12 countries. Most recommendations are graded conditional with very low certainty of evidence; no studies were conducted directly in humanitarian settings, and cost-effectiveness data is almost entirely drawn from high-income, formal sector contexts. Explicitly identifies cost-effectiveness of workplace mental health interventions as a priority research gap.