Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2023
Effects of iodine supplementation on thyroid function parameter: Systematic review and meta-analysis.
МетаанализСистематический обзорСтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Candido Aline Carare, Azevedo Francilene Maria, Silva Débora Letícia Frizzi, Ribeiro Sarah Aparecida Vieira, Castro Franceschini Sylvia do Carmo
Аннотация
BACKGROUND: Supplementation is an alternative with potential benefits for the prevention of iodine deficiency in pregnancy.
OBJECTIVE: To evaluate the effects of iodine supplementation on maternal thyroid hormone concentrations and iodine status during and/or before pregnancy.
METHODS: The review was conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). The search was conducted in the databases: Cochrane, Embase, Pubmed/MEDLINE and Scopus. Studies involving pregnant women of all trimesters who received oral iodine supplementation were included. Study selection was performed in the Rayyan program. Risk of bias was assessed by the Joanna Briggs Institute tool. Meta-analysis was performed in R software version 4.0.4.
RESULTS: Eleven articles with low and moderate risk of bias were included. According to the results of the meta-analysis, supplementation of 200 μg/day of iodine was able to change urinary iodine concentration during pregnancy, thus contributing to adequate intake. When evaluating the period when the intervention started, the best time to start supplementation was prior to pregnancy or in early pregnancy.
CONCLUSION: Daily iodine supplementation had satisfactory effects on iodine status and maternal thyroid hormone concentrations. Although supplementation with 200 µg showed positive effects on iodine status in pregnancy, some studies showed no effect. Prospero Registration: CRD42021249307 (https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=249307).
OBJECTIVE: To evaluate the effects of iodine supplementation on maternal thyroid hormone concentrations and iodine status during and/or before pregnancy.
METHODS: The review was conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). The search was conducted in the databases: Cochrane, Embase, Pubmed/MEDLINE and Scopus. Studies involving pregnant women of all trimesters who received oral iodine supplementation were included. Study selection was performed in the Rayyan program. Risk of bias was assessed by the Joanna Briggs Institute tool. Meta-analysis was performed in R software version 4.0.4.
RESULTS: Eleven articles with low and moderate risk of bias were included. According to the results of the meta-analysis, supplementation of 200 μg/day of iodine was able to change urinary iodine concentration during pregnancy, thus contributing to adequate intake. When evaluating the period when the intervention started, the best time to start supplementation was prior to pregnancy or in early pregnancy.
CONCLUSION: Daily iodine supplementation had satisfactory effects on iodine status and maternal thyroid hormone concentrations. Although supplementation with 200 µg showed positive effects on iodine status in pregnancy, some studies showed no effect. Prospero Registration: CRD42021249307 (https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=249307).