Exclusive breastfeeding and partial breastfeeding reduce the risk of overweight in childhood: A nationwide longitudinal study in Korea
- Authors
- Park, Seon-Joo; Lee, Hae-Jeung
- Issue Date
- Mar-2018
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Breastfeeding types; Overweight; Prospective study; Korea
- Citation
- OBESITY RESEARCH & CLINICAL PRACTICE, v.12, no.2, pp.222 - 228
- Journal Title
- OBESITY RESEARCH & CLINICAL PRACTICE
- Volume
- 12
- Number
- 2
- Start Page
- 222
- End Page
- 228
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/4002
- DOI
- 10.1016/j.orcp.2018.01.001
- ISSN
- 1871-403X
- Abstract
- Objective: Breastfeeding is generally known to reduce the risk of childhood over-weight and obesity. However, the results are controversial between countries, and nationwide data are rare. This study assessed the relationship between breastfeeding types and overweight incidence using nationwide longitudinal data in Korea. Methods: We analysed 774,764 infants who participated in the longitudinal nation-wide data from the Korea National Children's Health Examination 2007-2013. Childhood overweight was defined by a Z-score >= 1.64 (95th centile) for infants under 24 months and Z-scores >= 1.04 (85th centile) for children over 24 months. Cox proportional hazard model was used to analyse the relationship between breastfeeding types and overweight incidence. Results: Infants who were exclusively breastfed at 4-6 months of age had the multivariate-adjusted hazard ratio (HRs) for overweight of 0.78 (95% CI 0.77-0.79) and infants who were partially breastfed had the HRs for overweight of 0.96 (95% CI 0.94-0.98), which was lower compared to that of the exclusively formula fed group. Similar results were obtained for stratified analysis by boys and girls. Conclusions: Exclusive and partial breastfeeding have preventive effect on childhood overweight in Korea. Therefore, it is necessary to encourage breastfeeding to prevent childhood obesity and its consequences in developed Asian countries. (c) 2018 Asia Oceania Association for the Study of Obesity. Published by Elsevier Ltd. All rights reserved.
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