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J Pediatr. 2013 Jul;163(1):36-42.e1. doi: 10.1016/j.jpeds.2012.11.090. Epub 2013 Jan 11.

Breastfeeding duration and cognitive development at 2 and 3 years of age in the EDEN mother-child cohort.

Author information

1
Inserm, Center for Research in Epidemiology and Population Health, U1018, Epidemiology of Diabetes, Obesity and Renal Diseases, Lifelong Approach Team, F-94807 Villejuif, France. jonathan.bernard@inserm.fr

Abstract

OBJECTIVE:

To investigate the dose-response relationship between breastfeeding duration and cognitive development in French preschool children.

STUDY DESIGN:

In the French EDEN Mother-Child Cohort Study, we evaluated language ability with the Communicative Development Inventory (CDI) in 1387 2-year-old children and overall development with the Ages and Stages Questionnaire (ASQ) in 1199 3-year-old children. Assessments were compared between breastfed and non-breastfed children and also according to breastfeeding duration in multivariable linear models, controlling for a wide range of potential confounders. We tested departure from linearity.

RESULTS:

After adjustments, ever-breastfed children scored 3.7 ± 1.8 (P = .038) points higher than never-breastfed children on the CDI and 6.2 ± 1.9 (P = .001) points higher on the ASQ. Among breastfed children, exclusive and any-breastfeeding durations were positively associated with both CDI and ASQ scores. The fine motor domain of ASQ was associated with any-breastfeeding duration, and the problem solving domain with exclusive-breastfeeding duration. We did not observe significant departures from linearity. No interactions were found between the child's sex, parental education or socioeconomic status, and breastfeeding duration.

CONCLUSION:

Longer breastfeeding duration was associated with better cognitive and motor development in 2- and 3-year-old children and a dose-response relationship was suggested.

PMID:
23312681
DOI:
10.1016/j.jpeds.2012.11.090
[Indexed for MEDLINE]
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