[Goiter in school children from the Rzeszow district]

14481 children at the age of 6 to 15 including 7242 boys and 7239 girls underwent the examination. Children from rural areas were the majority-12240. Goiter was classified according to WHO scale from 1974. Goiter was find in 4354 children (1790 boys and 2384 girls), which constituted 30.1% of examined group. Small size goiter was predominant. O-B goiter was found in 2588 children, I. in 1299, II. in 386 III. in 81. Mielec region deserves special attention because goiter was diagnosed there in 49.3% of all examined children. Iodine deficiency seems to be the primary reason for goiter endemy.