1. Diabetes Prevention Unit, Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland;
2. Department of Obstetrics and Gynecology and Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland;
3. Department of Pediatrics and Adolescence, Oulu University Hospital, Oulu, Finland;
4. Institute of Health Sciences and Biocenter Oulu, University of Oulu, Oulu, Finland;
5. Institute of Behavioral Sciences, University of Helsinki, Helsinki, Finland;
6. Department of Epidemiology and Biostatistics, MRC Health Protection Agency (HPA) Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom;
7. Department of Children, Young People and Families, National Institute for Health and Welfare, Oulu, Finland;
8. Unit of Primary Care, Oulu University Hospital, Oulu, Finland; and
9. Children’s Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland