Gross differences observed in the placentas of smokers and nonsmokers

Gross placental characteristics of 7651 smokers and nonsmokers are compared in light of the previous finding that placentas of smokers are heavier for the weight of their fetuses than are those of nonsmokers. Subchorionic fibrin deposits and placental calcification are more prevalent in the placenta...

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Bibliographic Details
Published inAmerican journal of epidemiology Vol. 110; no. 2; p. 178
Main Author Christianson, R E
Format Journal Article
LanguageEnglish
Published United States 01.08.1979
Subjects
African Continental Ancestry Group
Birth Weight
Female
Humans
Infant, Newborn
Organ Size
Placenta - pathology
Pregnancy
Smoking
Comparative Studies
Embryo
Cultural Background
Smoking > side effects
Pregnancy Complications
Research Methodology
Diseases
Pregnancy
Studies
Reproduction
Ethnic Groups
Epidemiologic Methods
Population Characteristics
Fetus
Population
Fetal Membranes
Behavior
Demographic Factors
Maternal-fetal Exchange
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Summary:Gross placental characteristics of 7651 smokers and nonsmokers are compared in light of the previous finding that placentas of smokers are heavier for the weight of their fetuses than are those of nonsmokers. Subchorionic fibrin deposits and placental calcification are more prevalent in the placentas of smokers than in those of nonsmokers. While mean placental weights and placental weight distributions for light and heavy smokers combined do not differ from those of nonsmokers, other placental measurements do differ. Smokers have thinner, rounder placentas than nonsmokers and the distance from the edge of rupture of the membranes to the placental margin is reduced among smokers. These findings are discussed in relation to placental changes observed at high altitudes and complications of pregnancy that differ for smokers and nonsmokers.
ISSN:0002-9262
DOI:10.1093/oxfordjournals.aje.a112802