Discussion
Considering that previous studies have concluded that the region of Debrecen was an area of sufficient iodine supply (1, 2, 4, 5), it is striking that, on the basis of urinary iodine excretion, we found mild iodine deficiency in the non-pregnant female population. More importantly, 57.1% of pregnant women in Debrecen were found to be iodine deficient and 19.2% had goiter. One possible explanation is a change in available iodine