Iodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study
Lack 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. IoMu...
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| Veröffentlicht in: | British journal of nutrition 2021-11, Vol.126 (9), p.1331-1339 |
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| creator | Pinheiro, Cátia Xavier Moreira, Nara Ferreira, Pedro Matta Coelho, Cláudia Guimarães, Juliana Pereira, Gonçalo Cortez, Alice Bracchi, Isabella Pestana, Diogo Barreiros Mota, Inês Prucha, Carmo Martins, Cristina Alves Ribeiro, Célia Pinto, Edgar Almeida, Agostinho Delerue-Matos, Cristina Montenegro, Nuno Dias, Cláudia Camila Moreira-Rosário, André Azevedo, Luís Filipe Brantsæter, Anne-Lise Ramalho, Carla Cruz Fernandes, Virgínia Costa Leite, João Calhau, Conceição Keating, Elisa |
| description | Lack 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. |
| doi_str_mv | 10.1017/S0007114521000155 |
| format | Article |
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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.</description><identifier>ISSN: 0007-1145</identifier><identifier>EISSN: 1475-2662</identifier><identifier>DOI: 10.1017/S0007114521000155</identifier><identifier>PMID: 33461643</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Adequacy ; Cognition ; Cohort analysis ; Cohort Studies ; Cross-Sectional Studies ; Female ; Food ; Food sources ; Health care ; Health Knowledge, Attitudes, Practice ; Hormones ; Human and Clinical Nutrition ; Humans ; Inductively coupled plasma ; Iodine ; Iodine - analysis ; Knowledge ; Nutrient deficiency ; Nutrition ; Nutritional Status ; Observational studies ; Occupations ; Portugal ; Pregnancy ; Pregnant Women ; Questionnaires ; Risk analysis ; Risk factors ; Salt ; Sodium Chloride, Dietary ; Thyroid gland ; Ultrasonic imaging ; Urine ; Variables ; Womens health</subject><ispartof>British journal of nutrition, 2021-11, Vol.126 (9), p.1331-1339</ispartof><rights>The Author(s), 2021. Published by Cambridge University Press on behalf of The Nutrition Society</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c400t-def07094ca10562bdb4a17664dd96c68755ee483537e79d8947e2a68a0edb1e93</citedby><cites>FETCH-LOGICAL-c400t-def07094ca10562bdb4a17664dd96c68755ee483537e79d8947e2a68a0edb1e93</cites><orcidid>0000-0002-3904-9907 ; 0000-0001-6315-7134</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0007114521000155/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,776,780,27901,27902,55603</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33461643$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pinheiro, Cátia</creatorcontrib><creatorcontrib>Xavier Moreira, Nara</creatorcontrib><creatorcontrib>Ferreira, Pedro</creatorcontrib><creatorcontrib>Matta Coelho, Cláudia</creatorcontrib><creatorcontrib>Guimarães, Juliana</creatorcontrib><creatorcontrib>Pereira, Gonçalo</creatorcontrib><creatorcontrib>Cortez, Alice</creatorcontrib><creatorcontrib>Bracchi, Isabella</creatorcontrib><creatorcontrib>Pestana, Diogo</creatorcontrib><creatorcontrib>Barreiros Mota, Inês</creatorcontrib><creatorcontrib>Prucha, Carmo</creatorcontrib><creatorcontrib>Martins, Cristina</creatorcontrib><creatorcontrib>Alves Ribeiro, Célia</creatorcontrib><creatorcontrib>Pinto, Edgar</creatorcontrib><creatorcontrib>Almeida, Agostinho</creatorcontrib><creatorcontrib>Delerue-Matos, Cristina</creatorcontrib><creatorcontrib>Montenegro, Nuno</creatorcontrib><creatorcontrib>Dias, Cláudia Camila</creatorcontrib><creatorcontrib>Moreira-Rosário, André</creatorcontrib><creatorcontrib>Azevedo, Luís Filipe</creatorcontrib><creatorcontrib>Brantsæter, Anne-Lise</creatorcontrib><creatorcontrib>Ramalho, Carla</creatorcontrib><creatorcontrib>Cruz Fernandes, Virgínia</creatorcontrib><creatorcontrib>Costa Leite, João</creatorcontrib><creatorcontrib>Calhau, Conceição</creatorcontrib><creatorcontrib>Keating, Elisa</creatorcontrib><title>Iodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study</title><title>British journal of nutrition</title><addtitle>Br J Nutr</addtitle><description>Lack 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.</description><subject>Adequacy</subject><subject>Cognition</subject><subject>Cohort analysis</subject><subject>Cohort Studies</subject><subject>Cross-Sectional Studies</subject><subject>Female</subject><subject>Food</subject><subject>Food sources</subject><subject>Health care</subject><subject>Health Knowledge, Attitudes, Practice</subject><subject>Hormones</subject><subject>Human and Clinical Nutrition</subject><subject>Humans</subject><subject>Inductively coupled plasma</subject><subject>Iodine</subject><subject>Iodine - analysis</subject><subject>Knowledge</subject><subject>Nutrient deficiency</subject><subject>Nutrition</subject><subject>Nutritional Status</subject><subject>Observational studies</subject><subject>Occupations</subject><subject>Portugal</subject><subject>Pregnancy</subject><subject>Pregnant Women</subject><subject>Questionnaires</subject><subject>Risk analysis</subject><subject>Risk factors</subject><subject>Salt</subject><subject>Sodium Chloride, Dietary</subject><subject>Thyroid gland</subject><subject>Ultrasonic imaging</subject><subject>Urine</subject><subject>Variables</subject><subject>Womens 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knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study</title><author>Pinheiro, Cátia ; Xavier Moreira, Nara ; Ferreira, Pedro ; Matta Coelho, Cláudia ; Guimarães, Juliana ; Pereira, Gonçalo ; Cortez, Alice ; Bracchi, Isabella ; Pestana, Diogo ; Barreiros Mota, Inês ; Prucha, Carmo ; Martins, Cristina ; Alves Ribeiro, Célia ; Pinto, Edgar ; Almeida, Agostinho ; Delerue-Matos, Cristina ; Montenegro, Nuno ; Dias, Cláudia Camila ; Moreira-Rosário, André ; Azevedo, Luís Filipe ; Brantsæter, Anne-Lise ; Ramalho, Carla ; Cruz Fernandes, Virgínia ; Costa Leite, João ; Calhau, Conceição ; Keating, Elisa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-def07094ca10562bdb4a17664dd96c68755ee483537e79d8947e2a68a0edb1e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adequacy</topic><topic>Cognition</topic><topic>Cohort 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Conceição</au><au>Keating, Elisa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study</atitle><jtitle>British journal of nutrition</jtitle><addtitle>Br J Nutr</addtitle><date>2021-11-14</date><risdate>2021</risdate><volume>126</volume><issue>9</issue><spage>1331</spage><epage>1339</epage><pages>1331-1339</pages><issn>0007-1145</issn><eissn>1475-2662</eissn><abstract>Lack 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.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><pmid>33461643</pmid><doi>10.1017/S0007114521000155</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-3904-9907</orcidid><orcidid>https://orcid.org/0000-0001-6315-7134</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0007-1145 |
| ispartof | British journal of nutrition, 2021-11, Vol.126 (9), p.1331-1339 |
| issn | 0007-1145 1475-2662 |
| language | eng |
| recordid | cdi_proquest_journals_2580684010 |
| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Free Full-Text Journals in Chemistry; Cambridge University Press Journals Complete |
| subjects | Adequacy Cognition Cohort analysis Cohort Studies Cross-Sectional Studies Female Food Food sources Health care Health Knowledge, Attitudes, Practice Hormones Human and Clinical Nutrition Humans Inductively coupled plasma Iodine Iodine - analysis Knowledge Nutrient deficiency Nutrition Nutritional Status Observational studies Occupations Portugal Pregnancy Pregnant Women Questionnaires Risk analysis Risk factors Salt Sodium Chloride, Dietary Thyroid gland Ultrasonic imaging Urine Variables Womens health |
| title | Iodine knowledge is associated with iodine status in Portuguese pregnant women: results from the IoMum cohort study |
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