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Obesity-related knowledge and body mass index : a national survey in Portugal

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dc.contributor.authorHenriques, A.
dc.contributor.authorAzevedo, A.
dc.contributor.authorLunet, N.
dc.contributor.authorMoura-Ferreira, P.
dc.contributor.authorCarmo, Isabel Do
dc.contributor.authorSilva, S.
dc.date.accessioned2020-11-06T13:55:09Z
dc.date.available2020-11-06T13:55:09Z
dc.date.issued2019
dc.description© 2019 Springer Nature Switzerland AG. Part of Springer Nature.pt_PT
dc.description.abstractPurpose: Obesity-related knowledge predicts weight control but previous studies only comprise individuals with excessive weight and assess very specific aspects of knowledge. This study aims to evaluate several domains of obesity-related knowledge according to the body mass index (BMI) in a representative sample of Portuguese-speaking dwellers in mainland Portugal. Methods: A sample of 1624 participants aged 16–79 years was analyzed. Eighteen questions comprising eight obesity domains were asked: prevalence, physical activity, number of calories, adiposity location, causes, diagnosis, treatment and consequences; each one was dichotomized into correct/incorrect knowledge. Results: The majority of Portuguese-speaking dwellers recognized the benefits of physical activity, the risks of abdominal obesity and most consequences of excessive weight, independently of their BMI. However, knowledge gaps were identified regarding prevalence, calories and BMI diagnosis. BMI influenced specific obesity-related knowledge: participants with a normal BMI knew the BMI formula more often, identified 22 as normal BMI more frequently and had the highest proportion of correct knowledge regarding the number of calories an adult should eat; obese individuals identified natural products as not being good treatments for obesity more often. After adjusting for age, sex and educational level, obese individuals identified natural products and supplements as not being good obesity treatments more often. Conclusions: Obesity-related knowledge gaps (prevalence, calories, and diagnosis) were identified among Portuguese adults. Moreover, correct knowledge does not necessarily translate into a healthier BMI. Besides the dissemination of accurate information, public health interventions should focus on the transfer of knowledge to behaviors that will guarantee better weight management. Evidence-based medicine rankings: Level V: Opinions of respected authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.pt_PT
dc.description.sponsorshipThis study was supported by FEDER funds through Operational Programme Competitiveness and Internationalization and by national funding from The Portuguese Foundation for Science and Technology—FCT (Portuguese Ministry of Education and Science) within the project (HMSP-IISE/SAU-ICT/0004/2009) and within the Epidemiology Research Unit—Institute of Public Health, University of Porto (EPIUnit) (POCI-01-0145-FEDER-006862; Ref. UID/ DTP/04750/2013). Additionally, we gratefully acknowledge the FCT Investigator contract IF/01674/2015 (Susana Silva) and also a Scientifc Employment Stimulus contract CEECIND/01793/2017 (Ana Henriques). The funding source had no role in the study design, collection, analysis, or interpretation of data, writing the manuscript, or the decision to submit the manuscript for publication.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationEat Weight Disord 25, 1437-1446pt_PT
dc.identifier.doi10.1007/s40519-019-00782-wpt_PT
dc.identifier.eissn1590-1262
dc.identifier.issn1124-4909
dc.identifier.urihttp://hdl.handle.net/10451/44800
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Naturept_PT
dc.relationPOCI-01-0145-FEDER-006862pt_PT
dc.relationHealth information of Portuguese population: Knowledge and perceived quality and accessibility of health information sources
dc.relation.publisherversionhttps://www.springer.com/journal/40519/pt_PT
dc.titleObesity-related knowledge and body mass index : a national survey in Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleHealth information of Portuguese population: Knowledge and perceived quality and accessibility of health information sources
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/HMSP-IISE%2FSAU-ICT%2F0004%2F2009/PT
oaire.citation.endPage1446pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1437pt_PT
oaire.citation.titleEating and Weight Disorders - Studies on Anorexia, Bulimia and Obesitypt_PT
oaire.citation.volume25pt_PT
oaire.fundingStream3599-PPCDT
person.familyNameCarmo
person.givenNameIsabel do
person.identifier.orcid0000-0003-3463-1655
person.identifier.scopus-author-id6602345681
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4e89f626-9460-4e36-8dd3-82118358508d
relation.isAuthorOfPublication.latestForDiscovery4e89f626-9460-4e36-8dd3-82118358508d
relation.isProjectOfPublication758f6207-51c7-4071-befb-2bcdef7cad33
relation.isProjectOfPublication.latestForDiscovery758f6207-51c7-4071-befb-2bcdef7cad33

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