1. Department of Psychology, University of Gothenburg , Gothenburg , Sweden
2. Centre for Ageing and Health (AgeCap), University of Gothenburg , Gothenburg , Sweden
3. Netherlands Interdisciplinary Demographic Institute (NIDI-KNAW) , The Hague , The Netherlands
4. Department of Health Sciences, University Medical Center Groningen , Groningen , The Netherlands
5. Department of Sociology, University of Amsterdam , Amsterdam , The Netherlands