Iodine status in Melbourne adults in the early 1990s and 2007-08

Abstract

Objective: To investigate the iodine status of Melbourne adults in 1992-94 and 2007-08, and to assess dietary iodine intake to enable comparison with recommended Nutrient Reference Values. Method: A cross-sectional study utilising 24-hr urine samples collected at two time points in a random sample of the Melbourne Collaborative Cohort Study. Two hundred and fifty seven adults (128 males, 129 females) in 1992-94, with a mean age of 56 years, and 265 adults (132 males, 133 females) in 2007-08, with a mean age of 68 years, were assessed, all being Melbourne residents. Urinary iodine concentration (UIC) was determined and daily urinary iodine excretion and daily iodine intake were assessed. Resu..