TABLE IIT THYROID ABNORMALITIES IN MARSHALLESE POPULATIONS Age at Group Ronge lap Ailingnae Ueirik Controls Ronge lap Ailingnae Lcirikx Controls Exposure No. Pres- ently in Grouo Garza Dose(rads) Estimated Thyroid Dose(I*,rads) %, Abnormalicies <10 <10 <10 «10 19 6 54 48 175 69 14 0 700-1400 275-550 55-110 0 9G. 0.0 0.9 0.9 >10 ~id . +LO. >10 34 3 59 133 175 69 14 0 160 55 13 0 8.3 i2.5 3.4 2.3 *In estimating the thyroid doses to the Alilngnae and "Utiri« exposed group, it was assumed that such doses were proportional to the thyroid dose of the Rongelap exposed proup, based on relative whole body gamna dose received.