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BMC Public Health. 2014 Dec 13;14:1267. doi: 10.1186/1471-2458-14-1267.

The association between breastfeeding and childhood obesity: a meta-analysis.

Author information

1
Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St, John's, Newfoundland and Labrador A1B 3 V6, Canada. huangguowei@tmu.edu.cn.

Abstract

BACKGROUND:

The increase in childhood obesity is a serious public health concern. Several studies have indicated that breastfed children have a lower risk of childhood obesity than those who were not breastfed, while other studies have provided conflicting evidence. The objective of this meta-analysis was to investigate the association between breastfeeding and the risk of childhood obesity.

METHODS:

The PubMed, EMBASE and CINAHL Plus with Full Text databases were systematically searched from start date to 1st August 2014. Based on the meta-analysis, pooled adjusted odds ratio (AOR) and 95% confidence interval (CI) were calculated. I2 statistic was used to evaluate the between-study heterogeneity. Funnel plots and Fail-safe N were used to assess publication bias and reliability of results, and results from both Egger test and Begg test were reported.

RESULTS:

Twenty-five studies with a total of 226,508 participants were included in this meta-analysis. The studies' publication dates ranged from 1997 to 2014, and they examined the population of 12 countries. Results showed that breastfeeding was associated with a significantly reduced risk of obesity in children (AOR = 0.78; 95% CI: 0.74, 0.81). Categorical analysis of 17 studies revealed a dose-response effect between breastfeeding duration and reduced risk of childhood obesity.

CONCLUSION:

Results of our meta-analysis suggest that breastfeeding is a significant protective factor against obesity in children.

PMID:
25495402
PMCID:
PMC4301835
DOI:
10.1186/1471-2458-14-1267
[Indexed for MEDLINE]
Free PMC Article

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