[1] Erasmus MC, Dept Publ Hlth, POB 2040, NL-3000 CA Rotterdam, Netherlands
[2] Univ Helsinki, Dept Sociol, Helsinki, Finland
[3] Vrije Univ Brussel, Dept Sociol, Brussels, Belgium
[4] Univ Zurich, Inst Social & Prevent Med, CH-8006 Zurich, Switzerland
[5] Charles Univ Prague, Dept Demog, Prague, Czech Republic
[6] Lithuanian Univ Hlth Sci, Kaunas, Lithuania
[7] Natl Inst Hlth Dev, Dept Epidemiol & Biostat, Tallinn, Estonia
[8] Sodertorn Univ, Stockholm Ctr Hlth & Social Change, Huddinge, Sweden