[1] Univ Helsinki, IBS, Unit Personal Work & Hlth Psychol, FIN-00014 Helsinki, Finland
[2] Univ Helsinki, Helsinki Coll Adv Studies, FIN-00014 Helsinki, Finland
[3] Turku Univ Hosp, Dept Med, FIN-20520 Turku, Finland
[4] Univ Turku, Turku, Finland
[5] UCL, Dept Epidemiol & Publ Hlth, London, England
[6] Tampere Univ, Dept Pediat, FIN-33101 Tampere, Finland
[7] Tampere Univ Hosp, Tampere, Finland
[8] Natl Inst Hlth & Welf, Helsinki, Finland
[9] Turku Univ Hosp, Dept Clin Physiol & Nucl Med, FIN-20520 Turku, Finland
[10] Univ Turku, Res Ctr Appl & Prevent Cardiovasc Med, Turku, Finland