Analysis on monitoring result of IDD in Xining

  Objective   To understand the present situation of iodine deficiency disoder(IDD)and the prevention effect of iodated salt in Xining city.

  Methods   To investigate the present situation of IDD in whole city with probability proportional to size.

  Results   In 1999 the children's goiter rate was over 5% in two region(the west region and east region).The no qualified rate of iodated salt in 1997, 1999 is higher than that of 1995, only the median of UI in the west region in 1997 was under 100 μg/L.

  Conclusion   The prevention of IDD achieved obvious effect.But the monitor ing result of iodated salt in 1997, 1995 indicated that no qualified iodated salt on market was still the main reason that prevented the prevention effect of IDD.