Figure 2.
Iodine status based on the World Health Organization (WHO) criteria for urinary iodine concentration (UIC) [13]: <20 µg/L (Severe Deficiency); 20–49 µg/L (Moderate Deficiency); 50–99 µg/L (Mild Deficiency); 100–199 µg/L (Adequate); 200–299 µg/L (Above Adequate); ≥300 µg/L (Excessive).