[1] Uppsala Univ, Sociol Dept, S-75236 Uppsala, Sweden
[2] Univ Birmingham, Sch Social Policy, Birmingham B15 2TT, W Midlands, England
[3] Univ S Florida, Sociol Dept, Tampa, FL 33620 USA
[4] ISCTE Univ Inst Lisbon, CIES IUL, P-1649026 Lisbon, Portugal
[5] Leibniz Inst Prevent Res & Epidemiol BIPS, D-28359 Bremen, Germany