ie) ea Table 2. Length of stay on home island of unexposed Marshallese developing thyroid nodules at age >12 (S=surgery). Group (No. in group) Pt. No. Sex Rongelap (668) Age (1979) Length of stay on island (yr) 1573 829 938 841 858 867 M F F F F F 29 40 40 46 80(?) 51 0 3 3 ll ll (died 1973) 3 4023 910 1007 1575 4014 F M M F F 45 49 68 73 62 2 6 12 9 0 1554 F 60 980 1524 4009 882 Utirik (473) 3074 3015 3006 3042 3058 2279 3565 F M M M 28 38 35 48 F F M F F M F 26 41 78 51 52 23 24 F 26 uit 5030 M 36 Mr 3096 F 858 3555 Wotje (162) 5061 5027 5059 5074 F F F M F F 5053 F Likiep (173 in 1970) M M 3023 F M F F (2) 13 (7) ? 5 4 13 24 (72) |. 23 5 2 (7) 1 (2) 14 13 15 (7) ? ? 26 33 MT MT 53 68 MT MT 55 MT 68 MT 61 85(?2) MI MT 73 91(7) 65 23 MT MT 1954-1970 ? 4MT = Probably most of the time. *A small focus of “occult™ cancer reperted by a minority of pathologists. Such occult lesions are not infrequently found at autopsy and are generally considered to be of little clinical significance. - 106 -