2001 | European Society for Medical Oncology, member
2001 | International Society of Cancer Prevention, member
2001 | Society for Epidemiology Research, member
2003 | American Association for Cancer Research, member
2003 | Austrian Scientists in North America, board member, past president
2006 | Dana-Faber Harvard Cancer Center, Epidemiology Program, member
2009 | New York Academy of Sciences, member
2011 | Society for Research on Biological Rhythms, member
2013 | European Biological Rhythms Society (EBRS), member
2015 | Austrian Society for Epidemiology (OeGEpi), president
2020 | Austrian Science Fund (FWF), board member
2024 | Austrian Academy of Sciences (ÖAW), corresponding member of the division of mathematics and natural sciences