1The Danish National Institute of Public Health, University of Southern Denmark, Studiestraede 6, 1455 Copenhagen, Denmark
2DEFACTUM – Public Health & Health Services Research, Central Denmark Region and Department of Psychology, University of Southern Denmark, Denmark
3The Council on Health and Disease Prevention, Kristianiagade 12, 2100 Copenhagen, Denmark
4VIVE - The Danish Center for Social Science Research, Herluf Trolles Gade 11, 1052, Copenhagen, Denmark
5School of Social Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
6The Directorate of Health in Iceland, Reykjavík, Iceland
7Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK