Smoking prevalence among pregnant women from 2007 to 2012 at a tertiary-care hospital.

Unlabelled: The harmful effects of smoking during pregnancy are well known, but we lack prevalence data concerning this subject in Austria. The aim ofz the present study was to determine the prevalence and any changes in the prevalence of smoking during pregnancy in the last few years. The investigation was conducted at a perinatal center in Vienna, Austria.