Analysis of Iodine Nutrition Status of Children Aged 8 to 10 Years before and after the Reform of Salt Industry System in Xiamen
Chen Youlan
Li Lei
Chi Jiahuang
Zhang Jinhua
Liu Yuwen
Huang Shuying
Wu Xiaoqing
Abstract：OBJECTIVE To analyze the iodine nutrition status of children aged 8 to 10 years in Xiamen before and after the reform of salt industry system,and to provide scientific basis for the adjustment and formulation of iodine deficiency disease prevention and control strategies.METHODS Before(2016)and after(2022)the reform of salt industry system,cross-sectional research methods and stratified cluster sampling methods were adopted in 6 districts of Xiamen.The salt samples at home and random 1-time urinary sample of children aged 8 to 10 years were collected to determine the iodine level;thyroid of children aged 8 to 10 was examined.Changes in salt iodine,urine iodine and goiter prevalence before and after the reform of salt industry system.RESULTS The rate of goiter among children aged 8 to 10 years increased from 1.9%(8/423)to 2.8%(36/1 265)before and after the reform of the salt system in Xiamen,but the difference was not statistically significant(χ2=1.138,P＞0.05).The rate of iodized salt coverage among children aged 8 to 10 years decreased from 98.4%(1 213/1 233)to 96.0%(1 215/1 265)(χ2=17.382,P＜0.05),and the consumption rate of qualified iodized salt decreased from 95.9%(1 183/1 233)to 93.3%(1 180/1 265)(χ2=8.669,P＜0.05),which was lower after the reform than before the reform,and both differences were statistically significant.The rate of non-iodized salt increased from 1.6%(20/1 233)to 4.0%(50/1 265),which was higher after the reform than before the reform,and the difference was statistically significant(χ2=17.392,P＜0.05).The median urinary iodine among children aged 8 to 10 years decreased from 216.1 μg/L to 183.4 μg/L,which was lower after the reform than before the reform,and the difference was statistically significant(Z=4.732,P＜0.05).CONCLUSION Xiamen continues to maintain the goal of eliminating iodine deficiency disease,but the consumption rate of qualified iodized salt has decreased and the rate of non-iodized salt has increased after the reform of the salt industry system,which increases the risk of iodine deficiency hazards.Scientific iodine supplementation should be adhered to,and all interventions for iodine deficiency disorders should be strengthened to ensure iodine nutritional security.
Keywords：iodinedeficiency diseaseschildurinegoitersalt
Publication Date：2024-10-10
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 32-34,50 )