A twelve year follow-up of iodine deficiency in Bulape, Zaire

In a defined population of Bulape, Zaire, the prevalence of simple goitre was 42.4 +/- 1.3%. Compared with studies in the same population done twelve years previously, the prevalence of simple goitre had increased by 13.9% (P less than 0.05). Urinary iodine determination remained approximately the same. We conclude that over the twelve year period, the prevalence of iodine deficiency has not improved in the Bulape population.