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自1971年以来,美国每隔一段时间都会开展居民尿碘值的监测工作。2003—2004年美国全国健康与营养调查中碘的数据与2001—2002年的数据相比,并没有发生显著的变化。在经历了1971—1974年第1次全美健康与营养调查,到1988—1994年第3次调查之间尿碘值急剧下降之后,美国人膳食中碘
Since 1971, the United States will carry out the monitoring of urinary iodine value of residents from time to time. Iodine data from the 2003-2004 National Health and Nutrition Survey have not changed significantly from the 2001-2002 data. After experiencing the first National Health and Nutrition Survey from 1971 to 1974 and the dramatic drop in urinary iodine value between the third survey in 1988-1994,