Document Detail

Assessing the net effect of young maternal age on birthweight.
MedLine Citation:
PMID:  14595864     Owner:  NLM     Status:  MEDLINE    
Pregnancy during adolescence presents an increased risk for low birthweight, which is attributed not only to physiologic immaturity but also to socioeconomic and behavioral risk factors associated with adolescence. The independent effect of maternal age on birthweight is difficult to ascertain because age is closely entangled with these risks. We first examined the effect of being an adolescent mother on these risk pathways and then estimated the net effect of maternal age on birthweight (weight in grams or low birthweight (<2500 g)) after controlling for these risks. We used data on 214 adolescent and 415 adult primiparae and their infants from the Cebu Longitudinal Health and Nutrition Survey, a community-based survey in Metro Cebu, Philippines. Consistent with findings from other studies, adolescents in this sample were more socioeconomically disadvantaged, had poorer nutritional status during pregnancy, and received less prenatal care than adults. Bivariate analyses showed that infants of adolescents had a lower mean birthweight and were more at risk of low birthweight compared to those born to older mothers. When socioeconomic, biological, and behavioral risk factors were controlled for, young maternal age ceased to have an effect on birthweight in grams but remained a significant predictor of low birthweight. The common pathways through which maternal age influenced both birthweight variables were through its effects on maternal height and weight-for-height during pregnancy. In the model predicting birthweight in grams the maternal age effect was further manifested through prenatal care utilization.
Judith B Borja; Linda S Adair
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  American journal of human biology : the official journal of the Human Biology Council     Volume:  15     ISSN:  1042-0533     ISO Abbreviation:  Am. J. Hum. Biol.     Publication Date:    2003 Nov-Dec
Date Detail:
Created Date:  2003-11-03     Completed Date:  2004-03-18     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8915029     Medline TA:  Am J Hum Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  733-40     Citation Subset:  IM    
Copyright Information:
Copyright 2003 Wiley-Liss, Inc.
Office of Population Studies, University of San Carlos, Cebu City, Philippines 6000.
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MeSH Terms
Birth Weight*
Body Constitution
Cohort Studies
Maternal Age*
Nutritional Status
Prenatal Care / utilization
Prospective Studies
Random Allocation
Risk Factors
Socioeconomic Factors
Grant Support

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

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