Urinary iodine concentration: United States National Health And Nutrition Examination Survey 2001-2002.
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 microg/L in 1971-1974) and NHANES III (145 +/- 3 microg/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 167.8 microg/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.
Caldwell
Kathleen L
KL
Inorganic Toxicology and Nutrition Branch, Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control, Atlanta, Georgia 30341, USA. klc7@cdc.gov
Jones
Robert
R
Hollowell
Joseph G
JG
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006306:Health Surveys; D006801:Humans; D007455:Iodine / Q000008:administration & dosage / Q000652:urine*; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D011634:Public Health / Q000639:trends*; D017673:Sodium Chloride, Dietary / Q000008:administration & dosage; D014481:United States
D017673:Sodium Chloride, Dietary; C034024:iodized salt; D007455:Iodine