title: Smoking in pregnancy: some notes on the statistical controversy.
abstract: The statistical evidence for a relationship between pregnancy smoking, birthweight, and perinatal mortality is critically examined. Some apparent discrepancies between and within different studies are resolved.
mesh_terms: D001724:Birth Weight; D002657:Child Development; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D010500:Perinatology; D011247:Pregnancy; D011248:Pregnancy Complications; D012907:Smoking / Q000150:complications