Document Detail

Exploring the relationship between weaning and infant mortality: an isotope case study from Aşıklı Höyük and Çayönü Tepesi.
MedLine Citation:
PMID:  20623678     Owner:  NLM     Status:  MEDLINE    
We measured stable nitrogen isotope ratios in bone collagen of 60 individuals from the early Neolithic (9th-8th millennium Cal. BC) sites of Çayönü Tepesi and Aşıklı Höyük. Our aim was to identify the duration of exclusive breastfeeding (EBF), compare this with juvenile mortality at each site, and assess whether there was a relationship between them. The isotope analysis suggests that weaning commenced at about 1 year at Aşıklı Höyük and around 2 years at Çayönü Tepesi. The mortality data show equal numbers of infant deaths up to 24 months; however, after 24 months, the mortality rate increases at Çayönü Tepesi, and a Student's t-test confirms a significant difference in infant mortality between the sites. Weaning foods prepared in the early Neolithic from agricultural crops would have had low-iron content, poor nutritional value, and would have been prepared in nonsterilized containers. Therefore, later weaned infants in early Neolithic farming settlements, although capable of some immunological response, were probably undernourished putting them at a disadvantage when encountering bacteria in their weaning food. Our results suggest that infant feeding regimes that introduced infants to weaning foods in the first year of life may have had a positive effect on their survival.
J A Pearson; R E M Hedges; T I Molleson; M Ozbek
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Publication Detail:
Type:  Historical Article; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of physical anthropology     Volume:  143     ISSN:  1096-8644     ISO Abbreviation:  Am. J. Phys. Anthropol.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-15     Completed Date:  2011-01-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400654     Medline TA:  Am J Phys Anthropol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  448-57     Citation Subset:  IM    
Copyright Information:
© 2010 Wiley-Liss, Inc.
School of Archaeology, Classics and Egyptology, University of Liverpool, Liverpool L69 3GS, UK.
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MeSH Terms
Breast Feeding / ethnology*
Carbon Isotopes / analysis
Child, Preschool
Collagen / chemistry
Feeding Behavior / ethnology,  physiology
History, Ancient
Infant Mortality / ethnology*
Infant, Newborn
Nitrogen Isotopes / analysis*
Radiometric Dating
Ribs / chemistry
Statistics, Nonparametric
Weaning / ethnology*
Grant Support
//Wellcome Trust
Reg. No./Substance:
0/Carbon Isotopes; 0/Nitrogen Isotopes; 9007-34-5/Collagen

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

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