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August 24, 2025Ekologiya Cheloveka (Human Ecology)Open Access

Effect of maternal smoking on placental weight and placental-to-birth weight ratio in full-term singleton births: a birth registry-based study

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Authors

OKO A KharkovaVPVitaly A. PostoevAUAnna A. Usynina

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Overview

Retrospective cohort study finds maternal smoking affects placental weight and ratio in full-term births, suggesting cessation may improve outcomes.

Key Points

  • Smokers during pregnancy had significantly lower odds of having low standardized placental weight, improving their outcomes.
  • The mean placental weight was 534.1 grams for males and 523.7 grams for females, indicating a slight difference by sex.
  • Analysis showed smoking during pregnancy correlated with higher standardized placental weight, highlighting potential effects of smoking cessation.
  • Cessation before the first antenatal visit significantly improved both placental weight and the placental-to-birth weight ratio in mothers.

Cite This Study

Kharkova et al. (2025) studied this question.

synapsesocial.com/papers/68af5bbcad7bf08b1eadfa48https://doi.org/10.17816/humeco678348
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Placenta/birthweight ratio and perinatal outcome: a retrospective cohort analysis2011 · 103 citations
  2. 2Maternal and infant predictors of infant mortality in California, 2007–20152020 · 49 citations
  3. 3Placental Weight for Gestational Age and Adverse Perinatal Outcomes2012 · 145 citations
  4. 4Implementation, Quality Control and Selected Pregnancy Outcomes of the Murmansk County Birth Registry in Russia2008 · 30 citations