Does breastfeeding duration decrease child obesity? An instrumental variables analysis

Modrek, S.; Basu, S.; Harding, M.; White, J. S.; Bartick, M.C.; Rodriguez, E.; Rosenberg, K. D.

doi:10.1111/ijpo.12143

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Does breastfeeding duration decrease child obesity? An instrumental variables analysis

Published Date:

May 10 2016

Publisher's site:

http://dx.doi.org/10.1111/ijpo.12143 New Site Icon

Source:

Pediatr Obes. 12(4):304-311

Language:

English

[PDF-81.47 KB]

Details:

Alternative Title:

Pediatr Obes

Personal Author:

Modrek, S. ; Basu, S. ; Harding, M. ; White, J. S. ; Bartick, M.C. ; ... More ▼

Description:

Background

Many studies have documented that breastfeeding is associated with a significant reduction in child obesity risk. However, a persistent problem in this literature is that unobservable confounders may drive the correlations between breastfeeding behaviors and child weight outcomes.

Objective

This study examines the effect of breastfeeding practices on child weight outcomes at age 2.

Methods

This study relied on population-based data for all births in Oregon in 2009 followed for two years. We used instrumental variables methods to exploit variations in breastfeeding by mothers immediately after delivery and the degree to which hospitals encouraged mothers to breastfeed in order to isolate the effect of breastfeeding practices on child weight outcomes.

Results

We found that for every extra week that the child was breastfed, the likelihood of the child being obese at age 2 declined by 0.82% [95% CI 1.8% to 0.1%]. Likewise, for every extra week that the child was exclusively breastfed, the likelihood of being obese declined by 0.66% [95% CI 1.4 to 0.06%]. While the magnitudes of effects were modest and marginally significant, the results were robust in a variety of specifications.

Conclusion

The results suggest that hospital practices that support breastfeeding may influence childhood weight outcomes.

Subject:

[+]

Pubmed ID:

27161761

Pubmed Central ID:

PMC6588354

Document Type:

Journal Article

Funding:

T32 HL007034/HL/NHLBI NIH HHS/United States ; U01 DP006252/DP/NCCDPHP CDC HHS/United States ; U01DP006252/ACL HHS/United States ; UL1 TR001085/TR/NCATS NIH HHS/United States ;

Collection(s):

CDC Public Access

Main Document Checksum:

[+]

Supporting Files:

	nihms-1024788.nxml	text/xml
	NIHMS1024788-supplement-2.pdf	application/pdf

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