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Article: Does breastfeeding protect against childhood overweight? Hong Kong's 'Children of 1997' birth cohort

TitleDoes breastfeeding protect against childhood overweight? Hong Kong's 'Children of 1997' birth cohort
Authors
Issue Date2010
PublisherOxford University Press. The Journal's web site is located at http://ije.oxfordjournals.org/
Citation
International Journal Of Epidemiology, 2010, v. 39 n. 1, p. 297-305 How to Cite?
AbstractBackground: Observational studies from mainly Western settings suggest breastfeeding may protect against childhood adiposity; however, breastfeeding and adiposity share social patterning potentially generating confounding, making evidence from other settings valuable. Methods: We used multivariable linear regression to examine the prospective adjusted associations of breastfeeding with body mass index (BMI), height and weight z-scores at 7 years of age relative to the 2007 World Health Organization (WHO) growth reference, in a large (n = 8327), population-representative Hong Kong Chinese birth cohort, recruited between April and May 1997 with high follow-up (n = 7026). Results: Low socio-economic position (SEP) was associated with never breastfeeding and with exclusive breastfeeding for ≥3 months. We did not find any association between breastfeeding and BMI [z-score mean difference 0.07, 95% confidence interval (CI) -0.05 to 0.19], height (0.02, 95% CI -0.07 to 0.11) or weight (0.07, 95% CI -0.05 to 0.18), adjusted for sex, birth weight, gestational age, SEP, second-hand smoke (SHS) exposure, parity, mother's age at birth, mother's place of birth and serious infant morbidity. Conclusions: In a non-European setting, breastfeeding was not associated with child adiposity, suggesting that observed protective effects may be due to socially patterned confounding by SEP, maternal adiposity and maternal smoking. © The Author 2009; all rights reserved. Published by Oxford University Press on behalf of the International Epidemiological Association.
Persistent Identifierhttp://hdl.handle.net/10722/86620
ISSN
2015 Impact Factor: 7.522
2015 SCImago Journal Rankings: 4.381
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Health Care and Promotion, Hong Kong216106
Health and Health Services, Hong Kong03040711
Control of Infectious Diseases, Hong Kong04050172
Funding Information:

Hong Kong Health Care and Promotion Fund Committee, Hong Kong [Grant: #216106]; Health and Health Services Research Fund, Hong Kong [Grant: #03040711]; and Research Fund for the Control of Infectious Diseases, Hong Kong [Grant: #04050172].

References
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DC FieldValueLanguage
dc.contributor.authorKwok, MKen_HK
dc.contributor.authorSchooling, CMen_HK
dc.contributor.authorLam, THen_HK
dc.contributor.authorLeung, GMen_HK
dc.date.accessioned2010-09-06T09:19:16Z-
dc.date.available2010-09-06T09:19:16Z-
dc.date.issued2010en_HK
dc.identifier.citationInternational Journal Of Epidemiology, 2010, v. 39 n. 1, p. 297-305en_HK
dc.identifier.issn0300-5771en_HK
dc.identifier.urihttp://hdl.handle.net/10722/86620-
dc.description.abstractBackground: Observational studies from mainly Western settings suggest breastfeeding may protect against childhood adiposity; however, breastfeeding and adiposity share social patterning potentially generating confounding, making evidence from other settings valuable. Methods: We used multivariable linear regression to examine the prospective adjusted associations of breastfeeding with body mass index (BMI), height and weight z-scores at 7 years of age relative to the 2007 World Health Organization (WHO) growth reference, in a large (n = 8327), population-representative Hong Kong Chinese birth cohort, recruited between April and May 1997 with high follow-up (n = 7026). Results: Low socio-economic position (SEP) was associated with never breastfeeding and with exclusive breastfeeding for ≥3 months. We did not find any association between breastfeeding and BMI [z-score mean difference 0.07, 95% confidence interval (CI) -0.05 to 0.19], height (0.02, 95% CI -0.07 to 0.11) or weight (0.07, 95% CI -0.05 to 0.18), adjusted for sex, birth weight, gestational age, SEP, second-hand smoke (SHS) exposure, parity, mother's age at birth, mother's place of birth and serious infant morbidity. Conclusions: In a non-European setting, breastfeeding was not associated with child adiposity, suggesting that observed protective effects may be due to socially patterned confounding by SEP, maternal adiposity and maternal smoking. © The Author 2009; all rights reserved. Published by Oxford University Press on behalf of the International Epidemiological Association.en_HK
dc.languageengen_HK
dc.publisherOxford University Press. The Journal's web site is located at http://ije.oxfordjournals.org/en_HK
dc.relation.ispartofInternational Journal of Epidemiologyen_HK
dc.rightsInternational Journal of Epidemiology. Copyright © Oxford University Press.en_HK
dc.subject.meshBody Mass Indexen_HK
dc.subject.meshBody Weights and Measuresen_HK
dc.subject.meshBreast Feedingen_HK
dc.subject.meshChilden_HK
dc.subject.meshChild Developmenten_HK
dc.subject.meshCohort Studiesen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHong Kong - epidemiologyen_HK
dc.subject.meshHumansen_HK
dc.subject.meshLinear Modelsen_HK
dc.subject.meshMaleen_HK
dc.subject.meshOverweight - epidemiologyen_HK
dc.subject.meshSocioeconomic Factorsen_HK
dc.titleDoes breastfeeding protect against childhood overweight? Hong Kong's 'Children of 1997' birth cohorten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0300-5771&volume=39&issue=1&spage=297&epage=305&date=2010&atitle=Does+breastfeeding+protect+against+childhood+overweight?+Hong+Kong%27s+%27Children+of+1997%27+birth+cohorten_HK
dc.identifier.emailSchooling, CM:cms1@hkucc.hku.hken_HK
dc.identifier.emailLam, TH:hrmrlth@hkucc.hku.hken_HK
dc.identifier.emailLeung, GM:gmleung@hku.hken_HK
dc.identifier.authoritySchooling, CM=rp00504en_HK
dc.identifier.authorityLam, TH=rp00326en_HK
dc.identifier.authorityLeung, GM=rp00460en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1093/ije/dyp274en_HK
dc.identifier.pmid19700441-
dc.identifier.scopuseid_2-s2.0-77952303691en_HK
dc.identifier.hkuros169080en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952303691&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue1en_HK
dc.identifier.spage297en_HK
dc.identifier.epage305en_HK
dc.identifier.isiWOS:000274491000045-
dc.publisher.placeUnited Kingdomen_HK
dc.relation.projectInfectious illness and secondhand smoke exposure in utero and during the first 8 years of life-
dc.identifier.scopusauthoridKwok, MK=12806220300en_HK
dc.identifier.scopusauthoridSchooling, CM=12808565000en_HK
dc.identifier.scopusauthoridLam, TH=7202522876en_HK
dc.identifier.scopusauthoridLeung, GM=7007159841en_HK

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