TABLE VI Group: Utirik Exposed * Thyroid Abnormalities Age 1979 Number x Hypo y Benign z Ca Rate x/n Rate y/n Rate z/n Total xry-z n 25-29 34 0 0 1 0 0 -03 03 30-34 19 0 1 0 0 05 0 05 35-39 10 0 2 0 0 20 0 20 40-44 9 0 0 L 0 0 li -ll 45-49 4 0 1 0 0 2295 0 ~25 50-54 10 0 1 0 0 .10 0 .10 55-59 9 0 3 0 0 .33 0 .33 60-64 6 0 1 1 0 17 -l7 33 65-69 6 0 0 0 0 0 0 0 70-74 3 0 0 0 0 0 0 0 75-79 2 0 1 0 0 . 90 0 -50 Total 112 * 7 Rate YW Include only people currently alive as of December 1979