<prompt> Iodine status in a population is measured usingTSHT3,T4ThyroglobulinUrinary iodine  <response>: Iodine sufficiency is defined as a median urinary iodine concentration of: 100 to 299 mcgL for children and nonpregnant adults 150 to 249 mcgL for pregnant women Iodine deficiency is defined by the following median urinary iodine concentrations: Mild iodine deficiency - 50 to 99 mcgL Moderate deficiency - 20 to 49 mcgL Severe deficiency - 20 mcgL Ref : Park 23rd edition Pgno : 624 