Abstract
As a sequence to a survey which showed that the prevalence of goitre was higher in schoolchildren in Nithsdale (30%) than in Dumfries (16%), a total of 181 adult subjects from these 2 areas were examined and the plasma inorganic iodide concentrations (PII) were determined.
The large majority of PII values in subjects from both areas were within the normal range and the overall conclusions are that iodine deficiency severe enough to account for a high prevalence of small goitre or a low prevalence of large goitre does not exist in the South West of Scotland.
Since this area is likely to be representative of the U.K. in general, it is also concluded that there is no practical justification for general dietary iodine supplementation meanwhile.
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