Parental smoking during pregnancy and offspring cardio-metabolic risk factors at ages 17 and 32

Uri P. Dior*, Gabriella M. Lawrence, Colleen Sitlani, Daniel Enquobahrie, Orly Manor, David S. Siscovick, Yechiel Friedlander, Hagit Hochner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Objective: To examine the association of maternal and/or paternal smoking during pregnancy with offspring cardio-metabolic risk (CMR) factors at adolescence and early adulthood, taking into account socio-demographic, medical and lifestyle characteristics of parents and offspring, as well as offspring common genetic variation. Methods: We used a population-based cohort of all 17 003 births in Jerusalem during 1974-76, with available archival data on parental and birth characteristics. Measurements at age 17 were assessed at military induction examinations for 11 530 offspring. 1440 offspring from the original 1974-1976 birth cohort were sampled using a stratified sampling approach, and were interviewed and examined at age 32. Parental smoking during pregnancy (i.e. maternal, paternal and any parent) was primarily defined dichotomously (any number of cigarettes smoked daily by mother or father during pregnancy vs. non-smokers). Additionally, smoking was assessed by quantity of cigarettes smoked daily. Linear regression models were used to evaluate the associations of parental smoking during pregnancy with various offspring CMR factors, after controlling for potential confounders and for genetic variation in candidate genes. Results: Prevalence of exposure to parental smoking in-utero (i.e. smoking of any parent) was 53.2% and 48.4% among the 17 years old and 32 years old samples, respectively. At age 17, smoking of at least one parent during pregnancy was significantly associated with weight (B=1.39), height (B=0.59), BMI (B=0.32) and pulse rate (B=-0.78) (p-values<0.001). At age 32, parental smoking, adjusted for covariates, was associated with 2.22kg higher mean offspring weight, 0.95cm higher mean offspring height, 0.57kg/m2 higher BMI, and 1.46cm higher waist-circumference (p-values≤0.02). Similar results, reflecting a dose response, were observed when maternal and paternal smokings were assessed by number of cigarettes smoked daily. Conclusions: This prospective study demonstrates a potential long-term adverse effect of parental smoking during pregnancy on offspring health and calls for increasing efforts to promote smoking cessation of both parents before pregnancy.

Original languageAmerican English
Pages (from-to)430-437
Number of pages8
JournalAtherosclerosis
Volume235
Issue number2
DOIs
StatePublished - 1 Aug 2014
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the National Institutes of Health research [grant numbers RO1CA80197 , R01HL088884 ] and by the Israeli Science Foundation [grant number 1252/07 ].

Publisher Copyright:
© 2014 Elsevier Ireland Ltd.

Keywords

  • Cohort study
  • Obesity
  • Pregnancy
  • Risk factors
  • Smoking

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