{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["17(5)"],"submitter":["Yamamoto M"],"funding":["Ministry of the Environment"],"pubmed_abstract":["<h4>Aim</h4>The aim of this study was to examine the relationship between breastfeeding and postpartum maternal weight change.<h4>Method</h4>This study used data from the Japan Environment and Children's Study (JECS), an ongoing nationwide birth cohort study. Participants were categorized into two groups: full breastfeeding (FB) and non-full breastfeeding (NFB) groups. Postpartum weight changes between the FB (n = 26,340) and NFB (n = 38,129) groups were compared.<h4>Results</h4>At 6 months postpartum, mean weight retention was significantly lower in the FB group than in the NFB group (0.2 vs 0.8 kg, respectively, p<0.001). Weight retention differed by pre-pregnancy body mass index (BMI), with postpartum weights of overweight (pre-pregnancy BMI 25.0-29.9) and obese (pre-pregnancy BMI ≥30.0) participants being lower than pre-pregnancy weight; this trend was more pronounced in the FB group than in the NFB group (overweight: -2.2 vs -0.7 kg, respectively; obese: -4.8 vs -3.4 kg, respectively). Factors affecting weight retention at 6 months postpartum were weight gain during pregnancy (β = 0.43; p<0.001), pre-pregnancy BMI (β = -0.147; p<0.001) and feeding method. FB resulted in lower weight retention than NFB (β = -0.107; p<0.001).<h4>Conclusion</h4>Breastfeeding reduced maternal weight retention, which was greater in mothers who were obese before pregnancy. For obese women, active breastfeeding may improve their health."],"journal":["PloS one"],"pagination":["e0268046"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9067657"],"repository":["biostudies-literature"],"pubmed_title":["Effects of breastfeeding on postpartum weight change in Japanese women: The Japan Environment and Children's Study (JECS)."],"pmcid":["PMC9067657"],"pubmed_authors":["Miyagi E","Yamamoto M","Takami M","Aoki S","Misumi T","Ito S","Japan Environment and Children’s Study (JECS) Group","Kawakami C"],"additional_accession":[]},"is_claimable":false,"name":"Effects of breastfeeding on postpartum weight change in Japanese women: The Japan Environment and Children's Study (JECS).","description":"<h4>Aim</h4>The aim of this study was to examine the relationship between breastfeeding and postpartum maternal weight change.<h4>Method</h4>This study used data from the Japan Environment and Children's Study (JECS), an ongoing nationwide birth cohort study. Participants were categorized into two groups: full breastfeeding (FB) and non-full breastfeeding (NFB) groups. Postpartum weight changes between the FB (n = 26,340) and NFB (n = 38,129) groups were compared.<h4>Results</h4>At 6 months postpartum, mean weight retention was significantly lower in the FB group than in the NFB group (0.2 vs 0.8 kg, respectively, p<0.001). Weight retention differed by pre-pregnancy body mass index (BMI), with postpartum weights of overweight (pre-pregnancy BMI 25.0-29.9) and obese (pre-pregnancy BMI ≥30.0) participants being lower than pre-pregnancy weight; this trend was more pronounced in the FB group than in the NFB group (overweight: -2.2 vs -0.7 kg, respectively; obese: -4.8 vs -3.4 kg, respectively). Factors affecting weight retention at 6 months postpartum were weight gain during pregnancy (β = 0.43; p<0.001), pre-pregnancy BMI (β = -0.147; p<0.001) and feeding method. FB resulted in lower weight retention than NFB (β = -0.107; p<0.001).<h4>Conclusion</h4>Breastfeeding reduced maternal weight retention, which was greater in mothers who were obese before pregnancy. For obese women, active breastfeeding may improve their health.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022","modification":"2025-04-26T15:18:33.939Z","creation":"2025-04-06T14:50:22.831Z"},"accession":"S-EPMC9067657","cross_references":{"pubmed":["35507607"],"doi":["10.1371/journal.pone.0268046"]}}