Maternal snuff use and cotinine in late pregnancy-A validation study.

Anna GunnerbeckPauline RaaschouSven CnattingiusAnna-Karin Edstedt BonamyRonny Wickström

Published in: Acta obstetricia et gynecologica Scandinavica (2018)

Self-reported snuff use through questionnaires has high validity. In the Medical Birth Register, in late pregnancy, many snuff users were misclassified as nonusers. As a consequence, there is a risk of underestimating the harmful effects of snuff use when using late pregnancy Medical Birth Register data.

Keyphrases

pregnancy outcomes
preterm birth
healthcare
gestational age
pregnant women
birth weight
electronic health record
big data
machine learning
data analysis
artificial intelligence