[1] Karolinska Inst, Div Social Med, Dept Publ Hlth Sci, Stockholm, Sweden
[2] Univ Calif Los Angeles, Dept Community Hlth Sci, Fielding Sch Publ Hlth, Los Angeles, CA USA
[3] Univ Calif Los Angeles, Calif Ctr Populat Res, Los Angeles, CA USA
[4] Stockholm Univ, Dept Social Work, S-10691 Stockholm, Sweden
[5] Karolinska Inst, Dept Publ Hlth Sci, Div Publ Hlth Epidemiol, Stockholm, Sweden
[6] Stockholm Cty Council, Ctr Epidemiol & Community Med, Stockholm, Sweden