[Influence of removing iodized salt on children's goiter status in areas with high iodine in drinking water].

Abstract

OBJECTIVE:

To explore the changes of goiter prevalence of children living in areas with high iodine in drinking water after removing iodized salt from their diet.

METHODS:

Three towns with median water iodine of 150 - 300 μg/L were selected randomly in Hengshui city of Hebei province of China. A total of 452 and 459 children in the 3 towns were randomly selected to measure thyroid volume by ultrasound before and after removing iodized salt, respectively. Their goiter status was judged using the criteria of age-specific thyroid volume recommended by the WHO.

RESULTS:

After removing iodized salt, the overall goiter prevalence in the three towns significantly decreased from 24.56% (111/452) to 5.88% (27/459) (P < 0.01). The goiter prevalence in 8, 9 and 10 year-old children decreased respectively from 33.70% (31/92), 23.32% (45/193) and 20.96% (35/167) to 6.10% (10/164), 5.52% (9/163) and 6.06% (8/132). The goiter prevalence in boys and girls decreased from 27.05% (66/244) and 21.63% (45/208 ) to 6.66% (15/226 ) and 5.15% (12/233), respectively. The decreases in children's goiter prevalence across gender and age group were all significant.

CONCLUSION:

Children's goiter prevalence decreased significantly after removing iodized salt from their diet for about one and half years in the HIA in Hebei province.

• Authors: Shengmin Lu, Dong Xu, Yuchun Wang, Yonggui Du, Lihui Jia, Suoli Liang
• Journal: Wei sheng yan jiu = Journal of hygiene research (Wei Sheng Yan Jiu) Vol. 44 Issue 3 Pg. 393-7 (May 2015) ISSN: 1000-8020 [Print] China
• PMID: 26137616 (Publication Type: Journal Article, Randomized Controlled Trial)

Chemical References

• Drinking Water
• Iodides
• Sodium Chloride, Dietary
• iodized salt
• Water
• Iodine

Topics

• Child
• China (epidemiology)
• Diet
• Drinking Water (chemistry)
• Female
• Goiter (diagnostic imaging, epidemiology)
• Humans
• Iodides
• Iodine
• Male
• Nutritional Status
• Prevalence
• Reference Values
• Social Environment
• Sodium Chloride, Dietary (therapeutic use)
• Thyroid Gland (diagnostic imaging)
• Ultrasonography
• Water