Document Detail


Tobacco smoke exposure of pregnant mothers and blood pressure in their newborns: results from the wheezing illnesses study Leidsche Rijn birth cohort.
MedLine Citation:
PMID:  17664395     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
There is evidence to suggest that exposure of pregnant women to tobacco smoke is related to higher childhood blood pressure in their offspring. It is not well known whether this association is set in utero or by shared postnatal environments. The objective of this study was to assess the association between tobacco smoke exposure of pregnant mothers and blood pressure and heart rate of their newborns. In an unselected birth cohort, blood pressure and heart rate were measured in 456 infants at approximately 2 months of age. Smoking exposure of mothers in pregnancy was obtained by questionnaire. Of 456 mothers whose infants had blood pressure measured, 363 (79.6%) were not exposed to tobacco smoke in pregnancy, 63 (13.8%) did not smoke in pregnancy but were exposed by others, and 30 (6.6%) smoked. Infant offspring of mothers who had smoked during pregnancy had 5.4 mm Hg (95% CI: 1.2 to 9.7; P=0.01) higher systolic blood pressure levels than offspring of mothers who were not exposed to tobacco smoke in pregnancy, taking account of birth weight, infant age, gender, nutrition, and age of mother. No associations were found between maternal exposure to tobacco smoke in pregnancy and diastolic blood pressure. A positive association between maternal exposure to tobacco smoke and heart rate was largely explained by confounding. It can be concluded that maternal exposure to tobacco smoke in pregnancy has a substantial increasing effect on systolic blood pressure in early infancy.
Authors:
Caroline C Geerts; Diederick E Grobbee; Cornelis K van der Ent; Brita M de Jong; Marieke M van der Zalm; Nienke van Putte-Katier; Jan L L Kimpen; Cuno S P M Uiterwaal
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-07-30
Journal Detail:
Title:  Hypertension     Volume:  50     ISSN:  1524-4563     ISO Abbreviation:  Hypertension     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-08-23     Completed Date:  2007-09-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7906255     Medline TA:  Hypertension     Country:  United States    
Other Details:
Languages:  eng     Pagination:  572-8     Citation Subset:  IM    
Affiliation:
Julius Center for Health Sciences and Primary Care, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Pressure*
Cohort Studies
Environmental Exposure*
Female
Heart Rate
Humans
Infant, Newborn / physiology*
Male
Pregnancy*
Smoking
Tobacco Smoke Pollution*
Chemical
Reg. No./Substance:
0/Tobacco Smoke Pollution

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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