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Published on: August 21, 2015
Feeding practice during infancy is associated with attention-deficit/hyperactivity disorder and autism spectrum
Jong Ho Cha1, Yongil Cho2, Jin-Hwa Moon3
1Department of Pediatrics, Hanyang University Hospital, Seoul, South Korea.
Insights
Exclusive breastfeeding significantly lowers the risk of attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) in children. Breastfeeding offers protective benefits for neurodevelopmental outcomes.
Area of Science:
- Neurodevelopmental Disorders
- Pediatric Health
- Infant Nutrition
Background:
- Attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are common neurodevelopmental disorders.
- Infant feeding practices, including breastfeeding and timing of solid food introduction, are potential factors influencing neurodevelopment.
- Previous research suggests breastfeeding benefits overall child health and cognitive function.
Purpose of the Study:
- To investigate the impact of infant feeding practices on the development of ADHD and ASD.
- To analyze the association between breastfeeding (exclusive, partial, formula) and supplementary food introduction timing with ADHD/ASD incidence.
Main Methods:
- Utilized a large-scale nationwide database of 1,173,448 children aged 4-6 months from the National Screening Program for Infants and Children (NHSPIC) (2008-2014).
- Followed children until 6-7 years of age, collecting feeding data (exclusive breastfeeding [EBF], partial breastfeeding [PBF], exclusive formula feeding [EFF]) and supplementary food introduction timing.
- Employed generalized linear models for statistical analysis, with diagnoses based on the International Classification of Diseases, Tenth Revision.
Main Results:
- Exclusive breastfeeding (EBF) was associated with significantly lower incidence of both ADHD (OR: 0.77) and ASD (OR: 0.64) compared to exclusive formula feeding (EFF).
- Partial breastfeeding (PBF) also showed a protective effect against ADHD (OR: 0.91) and ASD (OR: 0.89) versus EFF.
- The timing of supplementary food introduction (<6 or >6 months) was not significantly associated with ADHD or ASD risk, except for a slightly increased ASD risk in EFF infants with late introduction (>6 months).
Conclusions:
- Breastfeeding, particularly exclusive breastfeeding, demonstrates a significant protective effect against the development of ADHD and ASD.
- These findings support and strengthen recommendations for promoting breastfeeding to foster positive neurodevelopmental outcomes.
- The timing of solid food introduction appears to have a limited impact on ADHD/ASD risk compared to breastfeeding status.
Abstract:
Attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are representative neurodevelopmental disorders. Using a nationwide database, we aimed to investigate whether feeding practices in infancy (breastfeeding and the timing of supplementary food introduction) could impact ADHD or ASD development. We evaluated 1,173,448 children aged 4-6 months who were included in the National Screening Program for Infants and Children (NHSPIC) between 2008 and 2014. We observed individuals until 6-7 years of age. Data on feeding type (milk feeding: exclusive breastfeeding [EBF], partial breastfeeding [PBF], exclusive formula feeding [EFF] at 4-6 months of age; supplementary food introduction: < 6 or > 6 months of age) were obtained from the NHSPIC, and diagnoses were based on the International Classification of Diseases, Tenth Revision. In a generalized linear model, children who received EBF had significantly lower incidence of both ADHD (odds ratio [OR]: 0.77, 95% confidence interval [CI]: 0.72-0.82) and ASD (OR: 0.64, 95% CI: 0.60-0.67) than that of children who received EFF. PBF also had a significant protective effect on both ADHD (0.91; 0.85-0.98), and ASD (0.89; 0.83-0.95). The timing of supplementary food introduction was not associated with either ADHD or ASD, although there was an increased risk of ASD in the EFF infants who had supplementary food introduced at > 6 months of age. Conclusion: Our study strengthens and supports the beneficial effect of breastfeeding on neurodevelopmental disorders in children. Breastfeeding should be encouraged and recommended to promote desirable neurodevelopmental outcomes. What is Known: • Breastfeeding is beneficial for the overall health of children, including neurodevelopmental outcomes and cognitive functions. What is New: • Breastfeeding, especially exclusive breastfeeding, was protective against neurodevelopmental disorders. • The effect of the timing of supplementary food introduction was limited.
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