Maternal iodine insufficiency and adverse pregnancy outcomes

Maternal & Child Nutrition
Cholaros CharoenratanaTheera Tongsong

Abstract

This study aimed to assess the iodine status of pregnant women in each trimester and to compare the pregnancy outcomes between groups with iodine insufficiency and iodine sufficiency. Longitudinal study on urinary iodine concentration (UIC) in each trimester as well as comparison between women with iodine insufficiency (<150 mcg L(-1) ) and iodine sufficiency was conducted. Pregnant women without thyroid diseases who had not received iodine supplementation were recruited for UIC measurements in each trimester and were followed up for pregnancy outcomes. In the analysis of 384, 325 and 221 samples in the first, second and third trimester, the medians of UICs were 147.39, 157.01 and 153.07 mcg L(-1) , respectively. Of 399 women, 174 (43.6%) had a UIC less than 150 mcg L(-1) (suggesting iodine insufficiency) and 225 (56.4%) had a UIC greater than or equal to 150 mcg L(-1) (suggesting iodine sufficiency). Of 390 women with availability of the final outcomes, 171 and 219 in the insufficiency and sufficiency group, respectively, the rates of preterm birth and low birthweight were significantly higher in the insufficiency group, 17.5% vs. 10.0% (P = 0.031) and 19.9% vs. 12.3% (P = 0.042), respectively. Logistic regression analysis sho...Continue Reading

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Citations

Mar 13, 2018·Journal of Obstetrics and Gynaecology : the Journal of the Institute of Obstetrics and Gynaecology·Mallika VongchanaKuntharee Traisrisilp
Dec 24, 2018·Acta Obstetricia Et Gynecologica Scandinavica·Griffith A BellJames L Mills
Jan 16, 2020·Journal of Clinical Medicine·Inés VelascoEduardo García-Fuentes
May 5, 2020·Thyroid : Official Journal of the American Thyroid Association·Nathalie Silva de MoraisPatrícia Teixeira
Jul 6, 2020·Biological Trace Element Research·Nahal HabibiTina Bianco-Miotto
Jul 31, 2019·Biological Trace Element Research·Sima NazarpourFereidoun Azizi
Jun 12, 2020·BMC Medicine·Charles Jonathan Peter SnartLaura J Hardie
Sep 3, 2020·Archives of Endocrinology and Metabolism·Aline Carare CandidoSylvia do Carmo Castro Franceschini
Dec 9, 2020·Human Reproduction·Divya M MathewsPaul L Hofman
Jan 6, 2021·Journal of Gynecology Obstetrics and Human Reproduction·Fahimeh Ramezani TehraniSamira Behboudi-Gandevani
Jan 26, 2021·Human Reproduction·Divya M MathewsPaul L Hofman
Nov 14, 2020·European Journal of Clinical Nutrition·Jessica FarebrotherAngela C Flynn
May 26, 2021·Archives of Endocrinology and Metabolism·Aline Carare CandidoSylvia do Carmo Castro Franceschini
Aug 6, 2021·Maternal & Child Nutrition·Alexandra C Purdue-SmitheJames L Mills
Aug 17, 2021·Frontiers in Endocrinology·Sun Y Lee
Sep 2, 2021·Biological Trace Element Research·Aynur Köse AktaşMurat Faik Erdoğan

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