1. Centre for Demographic and Ageing Research (CEDAR), Umeå University , Mediegränd 14, Humanioragränd Umeå universitet, 901 87 Umeå , Sweden
2. Department of Social Work, Umeå University , Biblioteksgränd 4 Umeå universitet, 901 87 Umeå , Sweden
3. Institute of Social Sciences (ISS), University of Lausanne , Bâtiment Géopolis, CH-1015 Lausanne , Switzerland