Abstract
Urine iodine has been measured in the U.S. population by the National Health and Nutrition Examination Survey(NHANES) since 1971. A downward trend was noted between NHANES I (320 ± 6 µg/L in 1971–1974) and NHANES III (145 ± 3 µg/L in 1988–1994). This report presents data from NHANES 2001–2002 that indicates that the U.S. median urine iodine (UI) level has stabilized since the initial drop between NHANES I and NHANES III. The median UI concentration in the U.S. population in NHANES 2001–2002 was found to be 167.8µg/L (95% confidence interval [CI] 159.3–177.6). The NHANES 2001–2002 data confirm the current stability of the U.S. iodine intake and continued adequate iodine nutrition for the country.
Get full access to this article
View all access options for this article.