Trends in maternal use of snus and smoking tobacco in pregnancy. A register study in southern Norway.
Rygh Ellen, Gallefoss Frode, Grøtvedt Liv·BMC pregnancy and childbirth
BACKGROUND: The use of tobacco products including Swedish snus (moist snuff) in pregnancy may cause adverse health outcomes. While smoking prevalence has decreased among fertile women in Norway, snus use has increased during the last years. We investigated whether these trends were reflected also during pregnancy in a…