ORIGINAL ARTICLE NICOTINE AND PREGNANCY Stopping when knowing: use of snus and nicotine during pregnancy in Scandinavia Ina Kreyberg1,2, Karen E.S. Bains1,2, Kai-H. Carlsen1,2, Berit Granum3, Hrefna K. Gudmundsdóttir1,2, Guttorm Haugen1,4, Gunilla Hedlin5,6, Katarina Hilde1,4, Christine M. Jonassen7,8, Live S. Nordhagen1,2,9, Björn Nordlund5,6, Katrine D. Sjøborg10, Håvard O. Skjerven1,2, Anne C. Staff1,4, Cilla Söderhäll6, Riyas M. Vettukatil 1,2 and Karin C. Lødrup Carlsen1,2 on behalf of the PreventADALL study group11 Affiliations: 1Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway. 2Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. 3Dept of Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway. 4Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway. 5Astrid Lindgren Children’s Hospital, Karolinska University Hospital, Stockholm, Sweden. 6Dept of Women’s and Children’s Health, Karolinska Institute, Stockholm, Sweden. 7Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway. 8Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway. 9VID Specialized University, Oslo, Norway. 10Dept of Obstetrics and Gynaecology, Østfold Hospital Trust, Kalnes, Norway. 11For a list of the PreventADALL study group members and their affiliations see the Acknowledgements section. Correspondence: Ina Kreyberg, Division of Paediatrics and Adolescent Medicine, Oslo University Hospital and the University of Oslo, Postboks 4956 Nydalen, 0424 Oslo, Norway. E-mail:
[email protected] ABSTRACT In young women, the use of snus increases in parallel with decreasing smoking rates but the use in pregnancy is unclear.