Document Detail


Quantity and Timing of Maternal Prenatal Smoking on Neonatal Body Composition: The Healthy Start Study.
MedLine Citation:
PMID:  25063722     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To examine the dose-dependent and time-specific relationships of prenatal smoking with neonatal body mass, fat mass (FM), fat-free mass (FFM), and FM-to-FFM ratio, as measured by air-displacement plethysmography (PEA POD system).
STUDY DESIGN: We analyzed 916 mother-neonate pairs participating in the longitudinal prebirth cohort Healthy Start study. Maternal prenatal smoking information was collected in early, middle, and late pregnancy by self-report. Neonatal body composition was measured with the PEA POD system after delivery. Multiple general linear regression models were adjusted for maternal and neonatal characteristics.
RESULTS: Each additional pack of cigarettes smoked during pregnancy was associated with significant decreases in neonatal body mass (adjusted mean difference, -2.8 g; 95% CI, -3.9 to -1.8 g; P < .001), FM (-0.7 g; 95% CI, -1.1 to -0.3 g; P < .001), and FFM (-2.1 g; 95% CI, -2.9 to -1.3 g; P < .001). Neonates exposed to prenatal smoking throughout pregnancy had significantly lower body mass (P < .001), FM (P < .001), and FFM (P < .001) compared with those not exposed to smoking. However, neonates of mothers who smoked only before late pregnancy had no significant differences in body mass (P = .47), FM (P = .43), or FFM (P = .59) compared with unexposed offspring.
CONCLUSION: Exposure to prenatal smoking leads to systematic growth restriction. Smoking cessation before late pregnancy may reduce the consequences of exposure to prenatal smoking on body composition. Follow-up of this cohort is needed to determine the influence of catch-up growth on early-life body composition and the risk of childhood obesity.
Authors:
Curtis S Harrod; Regina M Reynolds; Lisa Chasan-Taber; Tasha E Fingerlin; Deborah H Glueck; John T Brinton; Dana Dabelea
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-22
Journal Detail:
Title:  The Journal of pediatrics     Volume:  -     ISSN:  1097-6833     ISO Abbreviation:  J. Pediatr.     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375410     Medline TA:  J Pediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Inc. All rights reserved.
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