Iodine deficiency disorders in Zimbabwe. No change in prevalence of endemic goitre in Wedza District, as shown by school surveys carried out 18 years apart.

Goitre prevalence surveys were carried out in 1986 in five primary schools in Wedza District and the results compared with those obtained from the same schools in 1968. Overall, goitre prevalence was 73 percent and there had been no significant change since 1968. In 1986 the visible goitre rate was 14 percent. Goitre was more common in girls on both occasions. Evidence (though not conclusive) of milder forms of endemic cretinism was found. The need for a nationwide iodination programme is emphasised.