1. Healthy Working Lives Group, Clarice Pears Building, School of Health & Wellbeing, University of Glasgow , 90 Byres Road, Glasgow, G12 8TB , UK
2. MRC/CSO Social and Public Health Sciences Unit, Clarice Pears Building, School of Health & Wellbeing, University of Glasgow , 90 Byres Road, Glasgow, G12 8TB , UK
3. Health Economics and Health Technology Assessment, Clarice Pears Building, School of Health & Wellbeing, University of Glasgow , 90 Byres Road, Glasgow, G12 8TB , UK