Beijing children's urine iodine slightly overdose ** consumption rate nationwide third lowest

The Ministry of Health and other departments jointly issued the “2011 National Iodine Salt Monitoring Report” yesterday. The test results showed that the iodized salt coverage and qualification rate in Beijing were high, but the consumption rate of qualified iodized salt was not optimistic and was the third lowest in the country. Only higher than Qinghai and Shanghai.

The monitoring results showed that the qualified rate of iodized salt was 98.0%. Except Shanghai and Tibet Autonomous Region, the qualification rate of iodized salt in all provinces was above 95%. Among the 14296 unqualified iodized salts, there are 11,903 salt-like iodine contents below 20 mg/kg, which are mainly distributed in six provinces of Hebei, Shanxi, Shandong, Henan, Hunan, and Sichuan; 2393 salt-like iodine contents are higher than 50 In milligrams/kg, 13 of them have a salt-like iodine content higher than 100 mg/kg. As a result of population weighting, the national iodized salt coverage rate was 98.7%, which has remained above 95% for eight consecutive years since 2004.

Among the 827028 edible salt tests, 802,396 qualified iodized salt were adopted. According to population weighted, the national consumption rate of qualified iodized salt was 96.8%. Since 2004, it has remained at 90% or more for 8 consecutive years. With the province as the unit, the consumption rate of qualified iodized salt in Shanghai was 87.4%, and the consumption rate of qualified iodized salt in other provinces was over 90%. Among the 5232 samples monitored by Beijing, the coverage of iodized salt reached 95.6% and the qualification rate was 97.75%. However, the consumption rate of qualified iodized salt was only 93.47%, which was the third lowest among all the provinces. This figure is slightly different from the result of monitoring of salt iodine consumption by residents of the city this year released by the Beijing Municipal Bureau of Health. According to the findings of the Beijing Municipal Health Bureau, the consumption rate of qualified iodized salt in the city exceeded 95%, which has reached the national control standard. However, the consumption rate of qualified iodized salt in the suburbs including Fengtai, Shijingshan and Chaoyang districts and counties was low, and it was close to the critical standard value. The results of the survey differed from the samples taken.

At the same time, there was also a “2011 report on the implementation of high-risk monitoring and emergency iodine supplementation measures for iodine deficiency disorders”. The report mentioned that, in the first half of 2011, 592 urine samples from children aged 8 to 10 years were tested in 9 provinces and the median urinary iodine was 173.5 μg/L. The median urinary iodine levels in children in Beijing, Zhejiang, and Xinjiang exceeded 200 micrograms/liter, and the median urinary iodine in other provinces was between 100 micrograms/liter and 200 micrograms/liter. The median urinary iodine in seven districts and counties including Mentougou District of Beijing was between 200 μg/L and 300 μg/L.

Professor Gong Chunxiu of the Endocrine Genetic Metabolism Center of Beijing Children's Hospital said that children's urinary iodine levels are generally normal below 200 micrograms per liter. Exceeding this range means that the intake of iodine is more. Children with overdosed iodine may experience hyperthyroidism, and from clinical experience, the incidence of childhood hyperthyroidism in Beijing in recent years has actually increased more than 20 years ago.