Iodine Deficiency Disorders After Sixteen Years of Universal Dietary Salt Iodization in a Severe Iodine Deficiency Village in Niger
Hassimi Sadou*, 1, Ibrahim G. Dandano2, Mousbahou M. Alma1, Hamani Daouda2
Identifiers and Pagination:Year: 2014
First Page: 8
Last Page: 12
Publisher Id: TONUTRJ-8-8
Article History:Received Date: 08/03/2014
Revision Received Date: 07/07/2014
Acceptance Date: 09/07/2014
Electronic publication date: 27/10/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Since 1996, Niger has officially adopted the universal dietary salt iodization program (UDSI).
It is a before‑after trial study conducted to determine the impact of UDSI program in Tiguey 16 years after.
Subjects and methods:
The study was centered on 371 volunteers whose thyroid gland was palpated and urinary iodine concentration (UIC) determined in 319 of them.
The total goitre rate (TGR) was 13.20% with 9.70% invisible but palpable goitre (G1) and 3.50% visible goitre (G2). In 1987, the TGR was 77.15%, with 25.25% G1 and 51.90 % G2. The median UIC was 166.00 μg/L, the 20th percentile 66.40 μg/L and the 80 percentile was 300 μg/L. 68.34 % of the volunteers had a UIC ≥ 100 μg/L, 2.51% <20 μg/L, 10.97% between 20 and 49 μg/L and 18.18% between 50 and 99 μg/L. In 1987, only 3.96% of the studied sample had a UIC ≥ 100 μg/L, 45 % had a UIC <20 μg/L, 35% between 20 and 49 μg/L and 16% from 50 to 99 μg/L. No significant relationship was found between UIC and age and gender or goitre prevalence and gender (P> 0.05). However, goitre prevalence increases significantly with age (p < 0.05).
The implementation of the UDSI program in Niger decreased goitre prevalence and significantly improved the nutritional iodine status of the populations of Tiguey. However a slight endemic goitre and mild to moderate iodine deficiency persists.