1. Sandra Rosenbaum School of Social Work, University of Wisconsin–Madison , Madison, Wisconsin , USA
2. Center for Social Epidemiology and Population Health, University of Michigan , Ann Arbor, Michigan , USA
3. Institute of Gerontology, Wayne State University , Detroit, Michigan , USA
4. Department of Psychology, Wayne State University , Detroit, Michigan , USA
5. Unit of Public Health, Biostatistics and Health Services Research, Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-University of Bologna , Bologna, Emilia-Romagna , Italy