1. National Institute for Health and Welfare, Diabetes Prevention Unit, Helsinki and Oulu, Finland;
2. Institute of Health Sciences and
3. Department of Pediatrics and Adolescence, MRC Oulu, and
4. Children’s Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland;
5. Hyvinkää Hospital, Hyvinkää, Finland;
6. Department of Obstetrics and Gynecology, MRC Oulu Oulu University Hospital and University of Oulu, Oulu, Finland;
7. Department of Children, Young People and Families, National Institute for Health and Welfare, Oulu, Finland;
8. Medical Research Center Oulu, University of Oulu, Oulu, Finland;
9. Folkhälsan Research Centre, Helsinki, Finland;
10. Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland;
11. Unit of General Practice, Helsinki University Central Hospital, Helsinki, Finland; and
12. Vasa Central Hospital, Vasa, Finland