{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T23:55:28Z","timestamp":1777938928166,"version":"3.51.4"},"reference-count":54,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,8,31]],"date-time":"2020-08-31T00:00:00Z","timestamp":1598832000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004587","name":"Instituto de Salud Carlos III","doi-asserted-by":"publisher","award":["PI 07\/1265"],"award-info":[{"award-number":["PI 07\/1265"]}],"id":[{"id":"10.13039\/501100004587","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>(1) Background: The nutritional status of women during pregnancy can have a considerable effect on maternal and fetal health, and on the perinatal outcome. Aim: to assess the changes occurring in dietary iodine intake, potassium iodide supplementation, and smoking habit, and the impact of these changes on the urinary iodine concentration (UIC) during pregnancy in a population of women in Catalonia (Spain). (2) Methods: Between 2009\u20132011, an observational study included a cohort of women whose pregnancies were monitored in the public health system in the Central and North Metropolitan areas of Catalonia. Women received individual educational counseling, a dietary questionnaire was completed, and a urine sample was collected for iodine determination at each trimester visit. (3) Results: 633 (67.9%) women answered the questionnaire at all 3 visits. The percentage of women with a desirable UIC (\u2265150 \u03bcg\/L) increased from the first to the second trimester and remained stable in the third (57.3%, 68.9%, 68%; p &lt; 0.001). Analysis of the relationship between UIC\u2265150 \u03bcg\/L and the women\u2019s dietary habits showed that the percentage with UIC \u2265150 \u03bcg\/L increased with greater consumption of milk in the first trimester, and the same was true for iodized salt use in all three trimesters and iodine supplementation in all three. (4) Conclusion: During pregnancy, increased intake of milk, iodized salt, and iodine supplements were associated with an increase in the UIC.<\/jats:p>","DOI":"10.3390\/nu12092656","type":"journal-article","created":{"date-parts":[[2020,8,31]],"date-time":"2020-08-31T08:11:19Z","timestamp":1598861479000},"page":"2656","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Impact of Dietary Habit, Iodine Supplementation and Smoking Habit on Urinary Iodine Concentration During Pregnancy in a Catalonia Population"],"prefix":"10.3390","volume":"12","author":[{"given":"Maria-Teresa","family":"Torres","sequence":"first","affiliation":[{"name":"Sexual and Reproductive Health Care (ASSIR), CAP Antoni Creus Querol, Catalan Health Institute, 08228 Terrassa, Spain"},{"name":"Northern Metropolitan Research Support Unit (USR MN), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08290 Cerdanyola del Vall\u00e8s, Spain"},{"name":"Sexual and Reproductive Health Care Research Group (GRASSIR), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08907 L\u2019Hospitalet Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2353-1459","authenticated-orcid":false,"given":"Lluis","family":"Vila","sequence":"additional","affiliation":[{"name":"Endocrinology and Nutrition Service, Sant Joan Despi Moises Broggi Hospital, 08970 Sant Joan Despi, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8306-5798","authenticated-orcid":false,"given":"Josep-Mar\u00eda","family":"Manresa","sequence":"additional","affiliation":[{"name":"Northern Metropolitan Research Support Unit (USR MN), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08290 Cerdanyola del Vall\u00e8s, Spain"},{"name":"Departament of Nursing, Autonomous University of Barcelona, Bellaterra, 08193 Cerdanyola del Vall\u00e8s, Spain"},{"name":"Multidisciplinary Research Group in Health and Society (GREMSAS), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08007 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roser","family":"Casamitjana","sequence":"additional","affiliation":[{"name":"Biochemistry and Molecular Genetics Service, Hospital Clinic, 08036 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gemma","family":"Prieto","sequence":"additional","affiliation":[{"name":"Health Assistance Management of Avila, 05001 Avila, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pere","family":"Toran","sequence":"additional","affiliation":[{"name":"Northern Metropolitan Research Support Unit (USR MN), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08290 Cerdanyola del Vall\u00e8s, Spain"},{"name":"Multidisciplinary Research Group in Health and Society (GREMSAS), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08007 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gemma","family":"Falguera","sequence":"additional","affiliation":[{"name":"Sexual and Reproductive Health Care Research Group (GRASSIR), University Institute in Primary Care Research Jordi Gol (IDIAP Jordi Gol), 08907 L\u2019Hospitalet Llobregat, Spain"},{"name":"Sexual and Reproductive Health Care (ASSIR), Northern Metropolitan Territorial Administration, Catalan Health Institute, 08202 Sabadell, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lidia","family":"Franc\u00e9s","sequence":"additional","affiliation":[{"name":"School of Nursing, Faculty of Medicine and Health Sciences, Universidad de Barcelona, 08907 Hospitalet de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"the IODEGEST Study Group","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"118","DOI":"10.1159\/000442078","article-title":"The importance of adequate iodine during pregnancy and infancy","volume":"115","author":"Zimmermann","year":"2016","journal-title":"World Rev. 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