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Iodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study

2021-01-19Journal article Restricted access
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dc.contributor.authorPinheiro, Cátia
dc.contributor.authorMoreira, Nara Xavier
dc.contributor.authorFerreira, Pedro
dc.contributor.authorCoelho, Cláudia Matta
dc.contributor.authorGuimarães, Juliana
dc.contributor.authorPereira, Gonçalo
dc.contributor.authorCortez, Alice
dc.contributor.authorBracchi, Isabella
dc.contributor.authorPestana, Diogo
dc.contributor.authorMota, Inês Barreiros
dc.contributor.authorPrucha, Carmo
dc.contributor.authorMartins, Cristina
dc.contributor.authorRibeiro, Célia Alves
dc.contributor.authorPinto, Edgar
dc.contributor.authorAlmeida, Agostinho
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorMontenegro, Nuno
dc.contributor.authorDias, Cláudia Camila
dc.contributor.authorMoreira-Rosário, André
dc.contributor.authorAzevedo, Luís Filipe
dc.contributor.authorBrantsæter, Anne-Lise
dc.contributor.authorRamalho, Carla
dc.contributor.authorFernandes, Virgínia Cruz
dc.contributor.authorLeite, João Costa
dc.contributor.authorCalhau, Conceição
dc.contributor.authorKeating, Elisa
dc.date.accessioned2021-10-15T14:59:31Z
dc.date.available2021-10-15T14:59:31Z
dc.date.issued2021-01-19
dc.description.abstractLack of knowledge about iodine has been suggested as a risk factor for iodine deficiency in pregnant women, but no studies have addressed this issue in Portugal. So, the aim of this study was to investigate iodine knowledge among Portuguese pregnant women and its association with iodine status. IoMum, a prospective observational study, included 485 pregnant women recruited at Centro Hospitalar e Universitário de S. João, Porto, between the 10th and 13th gestational weeks. Partial scores for knowledge on iodine importance, on iodine food sources or on iodised salt were obtained through the application of a structured questionnaire. Then, a total iodine knowledge score was calculated and grouped into low, medium and high knowledge categories. Urinary iodine concentration (UIC) was measured in spot urine samples by inductively coupled plasma MS. Of the pregnant women, 54 % correctly recognised iodine as important to neurocognitive development, 32 % were unable to identify any iodine-rich food and 71 % presented lack of knowledge regarding iodised salt. Of the women, 61 % had a medium total score of iodine knowledge. Knowledge on iodine importance during pregnancy was positively associated with iodine supplementation and also with UIC. Nevertheless, median UIC in women who correctly recognised the importance of iodine was below the cut-off for adequacy in pregnancy (150 µg/l). In conclusion, knowledge on iodine importance is positively associated with iodine status. Despite this, recognising iodine importance during pregnancy may not be sufficient to ensure iodine adequacy. Literacy-promoting actions are urgently needed to improve iodine status in pregnancy.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPinheiro, C., Xavier Moreira, N., Ferreira, P., Matta Coelho, C., Guimarães, J., Pereira, G., Cortez, A., Bracchi, I., Pestana, D., Barreiros Mota, I., Prucha, C., Martins, C., Alves Ribeiro, C., Pinto, E., Almeida, A., Delerue-Matos, C., Montenegro, N., Dias, C. C., Moreira-Rosário, A., ... Keating, E. (Accepted/In press). Iodine knowledge is associated with iodine status in Portuguese pregnant women: Results from the IoMum cohort study. British Journal Of Nutrition. https://doi.org/10.1017/S0007114521000155pt_PT
dc.identifier.doi10.1017/S0007114521000155pt_PT
dc.identifier.eissn1475-2662
dc.identifier.urihttp://hdl.handle.net/10400.22/18717
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCambridge Corept_PT
dc.relation.publisherversionhttps://www.cambridge.org/core/journals/british-journal-of-nutrition/article/abs/iodine-knowledge-is-associated-with-iodine-status-in-portuguese-pregnant-women-results-from-the-iomum-cohort-study/0C3472B9E0EB95841D4BA17B192CF6EFpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectIodine statuspt_PT
dc.subjectIodine knowledgept_PT
dc.subjectIodine deficiencypt_PT
dc.subjectPregnancypt_PT
dc.subjectIodine supplementationpt_PT
dc.subjectIodine nutritionpt_PT
dc.titleIodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleBritish Journal of Nutritionpt_PT
oaire.citation.volume126pt_PT
person.familyNamePinto
person.givenNameEdgar
person.identifier.ciencia-id271F-B7DF-8FAB
person.identifier.orcid0000-0002-8021-4783
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationeaf9fc86-1a1c-437f-adee-d28040aa7f2f
relation.isAuthorOfPublication.latestForDiscoveryeaf9fc86-1a1c-437f-adee-d28040aa7f2f

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