世界卫生组织专家组对妊娠期妇女及婴幼儿等特殊人群碘的需求量及尿碘中位数已经提出了新的标准。2005年在瑞士日内瓦举行的专家组会议,就几个重要问题达成广泛的共识:1)全民食盐加碘(USI)仍然是消除碘缺乏病的主要策略。2)在USI已经有效落实至少2年的地区,即90%以上的人群食用 The WHO Expert Group has set new standards for the demand for iodine and median urinary iodine for specific populations such as pregnant women and infants and young children. The expert group meeting held in Geneva, Switzerland, in 2005, reached broad consensus on several important issues: 1) The universal salt iodization (USI) remains the primary strategy to eliminate iodine deficiency disorders. 2) In areas where the USI has been effectively implemented for at least 2 years, that is more than 90% of the population