A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels
© 2019 Siriraj Medical Journal. Objective: To establish the correlation of maternal urine iodine and neonatal thyroid stimulating hormone (TSH) in iodine supplemented and non-iodine supplemented pregnant women. Materials and Methods: The study was a prospective, randomized, controlled trial, which w...
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th-mahidol.521262020-01-27T17:22:18Z A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels Saifon Chawanpaiboon Vitaya Titapant Faculty of Medicine, Siriraj Hospital, Mahidol University Medicine © 2019 Siriraj Medical Journal. Objective: To establish the correlation of maternal urine iodine and neonatal thyroid stimulating hormone (TSH) in iodine supplemented and non-iodine supplemented pregnant women. Materials and Methods: The study was a prospective, randomized, controlled trial, which was conducted at the antenatal care unit, labor ward, and neonatal unit of Siriraj Hospital, Mahidol University, Bangkok, Thailand. In all, 224 pregnant women were recruited during 1 October 2015 and 31 July 2017. They were randomized into 2 groups: an iodine and a non-iodine supplemented group. One woman in the control group left the study as she had delivery at another hospital. Results: There were no statistically significant differences in the demographic data, original area of domicile, and adverse neonatal outcomes (including preterm labor and low birth weight) of the patients in the two groups. The maternal urinary iodine levels were 84.14 ± 61.85 and 58.41 ± 41.36 microgram/L, and the median values of the neonatal TSH levels were 3.7 ± 1.87 and 4.4 ± 1.99 mIU/ml, in the iodine and non-iodine supplemented groups, respectively. The differences in both values were statistically significant (p-value < 0.05). Conclusion: This study determined that there were statistically significant differences in the maternal urinary iodine levels and the median values of the neonatal TSH levels of the iodine and non-iodine replacement groups of pregnant women. Even though there were no clinically significant differences and none of the newborns was diagnosed with hypothyroidism, iodine supplementation in all pregnant women should be considered. A larger prospective, RCT trial would confirm the benefits of a strategy of routinely administering iodine to pregnant women at Siriraj Hospital. 2020-01-27T10:22:18Z 2020-01-27T10:22:18Z 2019-01-01 Article Siriraj Medical Journal. Vol.71, No.1 (2019), 59-65 10.33192/Smj.2019.10 22288082 2-s2.0-85063529200 https://repository.li.mahidol.ac.th/handle/123456789/52126 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063529200&origin=inward |
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Medicine Saifon Chawanpaiboon Vitaya Titapant A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
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© 2019 Siriraj Medical Journal. Objective: To establish the correlation of maternal urine iodine and neonatal thyroid stimulating hormone (TSH) in iodine supplemented and non-iodine supplemented pregnant women. Materials and Methods: The study was a prospective, randomized, controlled trial, which was conducted at the antenatal care unit, labor ward, and neonatal unit of Siriraj Hospital, Mahidol University, Bangkok, Thailand. In all, 224 pregnant women were recruited during 1 October 2015 and 31 July 2017. They were randomized into 2 groups: an iodine and a non-iodine supplemented group. One woman in the control group left the study as she had delivery at another hospital. Results: There were no statistically significant differences in the demographic data, original area of domicile, and adverse neonatal outcomes (including preterm labor and low birth weight) of the patients in the two groups. The maternal urinary iodine levels were 84.14 ± 61.85 and 58.41 ± 41.36 microgram/L, and the median values of the neonatal TSH levels were 3.7 ± 1.87 and 4.4 ± 1.99 mIU/ml, in the iodine and non-iodine supplemented groups, respectively. The differences in both values were statistically significant (p-value < 0.05). Conclusion: This study determined that there were statistically significant differences in the maternal urinary iodine levels and the median values of the neonatal TSH levels of the iodine and non-iodine replacement groups of pregnant women. Even though there were no clinically significant differences and none of the newborns was diagnosed with hypothyroidism, iodine supplementation in all pregnant women should be considered. A larger prospective, RCT trial would confirm the benefits of a strategy of routinely administering iodine to pregnant women at Siriraj Hospital. |
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Faculty of Medicine, Siriraj Hospital, Mahidol University |
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Faculty of Medicine, Siriraj Hospital, Mahidol University Saifon Chawanpaiboon Vitaya Titapant |
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Article |
author |
Saifon Chawanpaiboon Vitaya Titapant |
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Saifon Chawanpaiboon |
title |
A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
title_short |
A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
title_full |
A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
title_fullStr |
A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
title_full_unstemmed |
A randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
title_sort |
randomized controlled trial of the correlation between iodine supplementation in pregnancy and maternal urine iodine and neonatal thyroid stimulating hormone levels |
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2020 |
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https://repository.li.mahidol.ac.th/handle/123456789/52126 |
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1763489947013087232 |