Association between breastfeeding duration and BMI, 2009-2018: a population-based study.
Jiaqing Sun1, Jian Han1, Xiaofeng Jiang1
1Wenyan Branch of the First People's Hospital of Xiaoshan District, Hangzhou, China.
Frontiers in Nutrition
|September 19, 2024
Summary
Longer breastfeeding duration is linked to lower body mass index (BMI) in children. This study highlights breastfeeding
Area of Science:
- Pediatrics
- Public Health
- Nutrition Science
Background:
- Childhood overweight and obesity are significant global health concerns in the 21st century.
- Breastfeeding is recognized as a protective factor against childhood overweight and obesity.
- Exclusive breastfeeding rates remain low globally (40%) and in the US (25%).
Purpose of the Study:
- To investigate the association between breastfeeding duration and Body Mass Index (BMI) in US children aged 2-6 years.
- To increase awareness regarding the benefits of breastfeeding for child health.
- To provide evidence supporting breastfeeding promotion initiatives.
Main Methods:
- Cross-sectional study utilizing NHANES 2009-2018 data.
- Included 2,769 children aged 2-6 years.
- Statistical analyses included linear regression, Chi-square tests, t-tests, multivariate regression, and smooth cure fitting using EmpowerStats.
Main Results:
- A statistically significant negative association was found between longer breastfeeding duration and children's BMI (regression coefficient = -0.21, P < 0.05).
- Continuous analysis confirmed a significant negative relationship between breastfeeding duration and BMI across tertiles.
- Subgroup analyses indicated stronger benefits in low-income environments (regression coefficient = -0.57) and for mothers aged 18-35 years (regression coefficient = -0.24).
Conclusions:
- Breastfeeding duration is an important factor in mitigating childhood overweight and obesity.
- Findings support the clinical and public health importance of promoting breastfeeding.
- Interventions targeting breastfeeding may help prevent obesity-related diseases in children.
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