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Related Experiment Videos

Is smoking in pregnancy interrelated between generations?

E Hofvendahl1, S Hofvendahl, B Wallander

  • 1Tornblad Institute, Lund University, Sweden.

Acta Paediatrica (Oslo, Norway : 1992)
|December 24, 1997
PubMed
Summary

Maternal smoking during pregnancy appears to be passed down through generations, with daughters of mothers who smoked being twice as likely to smoke during their own pregnancies. This suggests a potential biological link influencing smoking habits across generations.

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Area of Science:

  • Reproductive Health
  • Public Health
  • Genetics

Background:

  • Smoking during pregnancy is a significant public health concern with potential intergenerational effects.
  • Understanding factors influencing persistent smoking habits across generations is crucial for targeted interventions.

Purpose of the Study:

  • To investigate the association between maternal smoking during pregnancy in one generation and smoking habits in their daughters during subsequent pregnancies.
  • To explore potential biological or environmental mechanisms underlying intergenerational transmission of smoking behaviors.

Main Methods:

  • Utilized prospective questionnaire data from first-generation births (1964-67) and linked it with the Swedish Medical Birth Registry for second-generation births (n=1659).
  • Employed the Mantel-Haenszel method for confounder adjustment and stratified analysis to assess the odds ratio of maternal smoking across generations.

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  • Analyzed trends in maternal smoking prevalence in two parturient cohorts separated by 30 years.

    • Main Results:

    • Maternal smoking in the first generation was associated with a significantly increased, approximately doubled, odds ratio for pregnancy smoking among daughters.
    • This association remained consistent after stratification for social environment index and educational level, suggesting a robust link.
    • A comparative analysis showed a greater decrease in maternal smoking prevalence among younger women compared to older women over a 30-year period.

    Conclusions:

    • The study provides evidence suggesting a biological association in pregnancy smoking habits transmitted across generations.
    • Further research into causative mechanisms is recommended to develop more effective smoking cessation programs.
    • Observed trends indicate a positive shift with decreasing smoking prevalence among younger parturient women.