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Authordc.contributor.authorClark, Katy M. 
Authordc.contributor.authorCastillo, Marcela es_CL
Authordc.contributor.authorCalatroni, Agustín es_CL
Authordc.contributor.authorWalter, Tomas es_CL
Authordc.contributor.authorCayazzo, Marisol es_CL
Authordc.contributor.authorPino Zúñiga, Paulina es_CL
Authordc.contributor.authorLozoff, Betsy es_CL
Admission datedc.date.accessioned2008-12-22T15:14:08Z
Available datedc.date.available2008-12-22T15:14:08Z
Publication datedc.date.issued2006-04
Cita de ítemdc.identifier.citationAMBULATORY PEDIATRICS Volume: 6 Issue: 2 Pages: 65-71 Published: MAR-APR 2006en
Identifierdc.identifier.issn1530-1567
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/123854
Abstractdc.description.abstractObjective: Breast-feeding is associated with better child development outcomes, but uncertainty remains primarily due to the close relationship between breast-feeding and socioeconomic status. This study assesses the issue in a low socioeconomic status sample where breast-feeding was close to universal. Methods: Seven hundred eighty-four Chilean children were followed longitudinally from infancy. All but four were initially breastfed, 40% nursed beyond 12 months, and infant growth was normal. Child development was assessed at 5 1/2 years by a cognitive, language, and motor test battery. The duration of breast-feeding as the sole milk source was analyzed as a continuous variable, adjusting for a comprehensive set of background factors. Results: The relationship between breast-feeding and most 5 1/2-year developmental outcomes was nonlinear, with poorer outcome for periods of breast-feeding as the sole milk Source for < 2 months or > 8 months-statistically significant for language, motor, and one comprehensive cognitive test, with a suggestive trend for IQ. Conclusions: The observed nonlinear relationships showed that breast-feeding as the sole milk source for < 2 months or > 8 months, compared with 2-8 months, was associated with poorer development in this sample. The latter finding requires replication in other samples where long breast-feeding is common and socioeconomic status is relatively homogeneous.en
Lenguagedc.language.isoenen
Publisherdc.publisherALLIANCE COMMUNICATIONS GROUP DIVISION ALLEN PRESSen
Keywordsdc.subjectCOGNITIVE-DEVELOPMENTen
Títulodc.titleBreast-feeding and mental and motor development at 5 1/2 yearsen
Document typedc.typeArtículo de revista


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