Table 1. Group age 1954 Summary of thyroid abnommnalities in the Marshallese, 1981. (Corrected matched control value subtracted.)* Est. thy. No. dose, rad Ronge lap <10 10-18 >18 Total 810-1150F 335- 810 335 556 av. Ailingnae <10 10-18 >18 Total 275-450 190 135 217 av. Rong. + Ail. Total nodules Correc— No. % ted 2% 17 3 3 23 77.3 25.0 9.1 (34.3 74.7 17.4 1.2 28.5 2 28.6 26.0 4 6 36.4 31.6 28.5 35.8 Carcinoma No. % 1 1 2 4 4.5 8.3 6.41 6.0 Correc- ted % 3.6 8.3 5.4 5.2 Hypofunction** Correc~ Now Z% ted 2Z 3 13.6 13.6 4 7 11.8 10.4 11.9 10.1 Total lesions Correc— ted 2 88.3 17.3 13.2 38.7 26.3 <10 10-18 >18 Total 275-1150 190- 810 135- 335 482 av. 19 3. 7 29 65.5 23.1 15.9 «33.7 62.8 15.5 8.0 27.9 1 1 2 4 3.4 7.7 4.5 4.7 2.5 7.7 3.8 4.0 Utirik <10 10-18 >18 Total 60-95 30-60 30 51 av. 5 3 9 li 4.7 14.2 11.4 9.1 5-2 6.7 3.5 4.6 i 1 1 3 1.6 4.8 1.3 1.8 0.7 4.8 0.6 1.1 2 1 2 5 0.9 1.3 0.7 0.8 1 1 9.0 5.2 8.8 5.0 37.3 30.2 3 10.3 10.3 5 8 11.4 9.3 11.1 9.0 73.2 i5.3 19.2 36.3 5.2 6.3 3.5 4.5 Matched controls, unexposed <10 10-18 >18 Total 229 292 600 6 6 23 35 2.6 7.6 7.9 5.8 1 1 2 1.3 0.3 0.3 2.8tt 8.3 -— om 2 *The cancer estimates are possibly underestimated since all unoperated nodules were considered benign for these calculations. Occult carcinomas were not included under carcinoma. **No nodule cases with hypofunction are included. Iv.) (See Tables 1 and 2, Appendix tThe lower dose estimates for the <10 group were used for in utero cases. tiNo correction necessary. w. - 59 -