1. Department of Public Health, University of Helsinki, Helsinki, Finland; South Ostrobothnia Central Hospital, Seinajoki, Finland; and Red RECAVA Grupo RD06/0014/0015, Hospital Universitario La Paz, Madrid, Spain
2. Carl Gustav Carus Medical Faculty, Technical University of Dresden, Dresden, Germany
3. Department of Chronic Disease Prevention, Diabetes Prevention Unit, National Institute for Health and Welfare (THL), Helsinki, Finland