Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review

Introduction. Two main strategies are currently recommended for the prevention and control of iodine deficiency in the world: implementation of universal salt iodisation programmes and permanent monitoring of iodine consumption by the population. Although iodine intake and coverage iodised salt have...

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Main Authors: Almeida Abudo Leite Machamba, Francilene Maria Azevedo, Aline Carare Candido, Mariana de Souza Macedo, Silvia Eloiza Priore, Sylvia do Carmo Castro Franceschini
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Journal of Nutrition and Metabolism
Online Access:http://dx.doi.org/10.1155/2021/9971092
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author Almeida Abudo Leite Machamba
Francilene Maria Azevedo
Aline Carare Candido
Mariana de Souza Macedo
Silvia Eloiza Priore
Sylvia do Carmo Castro Franceschini
author_facet Almeida Abudo Leite Machamba
Francilene Maria Azevedo
Aline Carare Candido
Mariana de Souza Macedo
Silvia Eloiza Priore
Sylvia do Carmo Castro Franceschini
author_sort Almeida Abudo Leite Machamba
collection DOAJ
description Introduction. Two main strategies are currently recommended for the prevention and control of iodine deficiency in the world: implementation of universal salt iodisation programmes and permanent monitoring of iodine consumption by the population. Although iodine intake and coverage iodised salt have increased in the world population, iodine deficiency disorders (IDDs) may still be a public health problem in a few countries or communities. Objective. To assess the impact of salt iodisation programmes on urinary iodine concentrations and goitre rates in the world population. Methodology. A systematic review based on the PRISMA method. We obtained articles from Scopus, Science Direct, MEDLINE databases, and other sources between March and April 2020, without limitation of dates. “Iodisation” AND “urinary iodine concentrations” AND “goitre” in English, Portuguese, and Spanish without filters and clinical trial, case-control, and cross-sectional studies were included in this review. Results. Of 479 abstracts, twenty-three were eligible. Coverage on iodised salt was in the range of 16 to 98%, and 11 studies had been sufficient, whilst eight studies had adequate iodine concentration in salt and three excess. 81.8% of studies that had an adequate median of UIC had a good impact in their respective salt iodisation programmes. Conclusion. After 18 years of salt iodisation programme implementation in the 13 countries, the majority achieved sustaining elimination of IDD whilst all had adequate median UIC; however, more detailed studies are still needed to confirm that all communities are equally protected of IDD.
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spelling doaj-art-4cd55de9e5e34c66b097307f0874f7972025-08-20T03:34:19ZengWileyJournal of Nutrition and Metabolism2090-07242090-07322021-01-01202110.1155/2021/99710929971092Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic ReviewAlmeida Abudo Leite Machamba0Francilene Maria Azevedo1Aline Carare Candido2Mariana de Souza Macedo3Silvia Eloiza Priore4Sylvia do Carmo Castro Franceschini5Department of Nutrition and Health, Federal University of Viçosa (UFV), Viçosa/36570.900, BrazilDepartment of Nutrition and Health, Federal University of Viçosa (UFV), Viçosa/36570.900, BrazilDepartment of Nutrition and Health, Federal University of Viçosa (UFV), Viçosa/36570.900, BrazilDepartment of Nutrition and Health, Federal University of Viçosa (UFV), Viçosa/36570.900, BrazilDepartment of Nutrition and Health, Federal University of Viçosa (UFV), Viçosa/36570.900, BrazilDepartment of Nutrition and Health, Federal University of Viçosa (UFV), Viçosa/36570.900, BrazilIntroduction. Two main strategies are currently recommended for the prevention and control of iodine deficiency in the world: implementation of universal salt iodisation programmes and permanent monitoring of iodine consumption by the population. Although iodine intake and coverage iodised salt have increased in the world population, iodine deficiency disorders (IDDs) may still be a public health problem in a few countries or communities. Objective. To assess the impact of salt iodisation programmes on urinary iodine concentrations and goitre rates in the world population. Methodology. A systematic review based on the PRISMA method. We obtained articles from Scopus, Science Direct, MEDLINE databases, and other sources between March and April 2020, without limitation of dates. “Iodisation” AND “urinary iodine concentrations” AND “goitre” in English, Portuguese, and Spanish without filters and clinical trial, case-control, and cross-sectional studies were included in this review. Results. Of 479 abstracts, twenty-three were eligible. Coverage on iodised salt was in the range of 16 to 98%, and 11 studies had been sufficient, whilst eight studies had adequate iodine concentration in salt and three excess. 81.8% of studies that had an adequate median of UIC had a good impact in their respective salt iodisation programmes. Conclusion. After 18 years of salt iodisation programme implementation in the 13 countries, the majority achieved sustaining elimination of IDD whilst all had adequate median UIC; however, more detailed studies are still needed to confirm that all communities are equally protected of IDD.http://dx.doi.org/10.1155/2021/9971092
spellingShingle Almeida Abudo Leite Machamba
Francilene Maria Azevedo
Aline Carare Candido
Mariana de Souza Macedo
Silvia Eloiza Priore
Sylvia do Carmo Castro Franceschini
Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review
Journal of Nutrition and Metabolism
title Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review
title_full Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review
title_fullStr Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review
title_full_unstemmed Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review
title_short Assessment of the Impact of Salt Iodisation Programmes on Urinary Iodine Concentrations and Goitre Rates: A Systematic Review
title_sort assessment of the impact of salt iodisation programmes on urinary iodine concentrations and goitre rates a systematic review
url http://dx.doi.org/10.1155/2021/9971092
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