Oa population. The findings also support the program of thyrosing replacement in the exposed Rongelap pepulation to prevent both clinical hypothyroid. win and the associued rise in plasing TSE, which nity be tumorigenic. 4. Thyroid Function in the Utirik and Unexposed Rongelap Groups was significantly lower (G0 1.8 jeg i). Thefre- quency distribution calculations (sce Table 2 and Figure 30) indicate that a substantial portion of the Cuirik population has plasma Ty concentra: tion <5 pe‘dl Mewurements of plasiia ti jadothyronine (nut shown) showed similar reduc ions in those pationts with low Ty values, Plasiia During the 1973 survey, [Ty and TSUE concenIratieas seere mcaeared in plisnia from LOO utes. " posed Rongelap and 97 exposca Cuitik subjects T e-e-e Craik the Cited States, and, asin the United Ststes, oe aA) be -_ Lh 4 subye te Subjects Plasma Vy, pg al with value <0 wath vadue >it 772s a “Ws Habs |e : 34 z Phigna “Thyroxine Comentrationa (Mesn = SD in Cink and Unesposcd Rongelap Populateans, March [O74 1A) Ronyelap woe ypaeed oT Coirik cypeecd T wr the plasaia Vy concentrations were skewed to the Gsrouape T Magog 174 Kongelap group, 7.7 ag. dl. wos tlie same asin ‘Table 20 T o—e Kiumelay ive “Pable 20) The mean Uy a the unespuscd upper range. Inthe Utinkk group, the meas T, T sree r = * ¥ : Hy u al rt 24 “Signilicenthy: different. psc OUT eee dual wales << SU. i 4 Yt 4 l fir ‘8 Vhastrae Cbs reonuiae (gag bead L tl Figure 19. Percentages of people in CU rinik and in Rone. Langa cntncenpoemacel reaps Sees dns averen iy reonarie levels, PAT 4, Valle #0 Vis rostee- Binding Giebatin CERO Lasek (Acai SDR te Soot, P07 S$ THG In REA TH Ditading Calpe Hs Group " my dl n Rongelap Espaemed hl biota Tho Al wera Ail wera® 25 2! Peps Ladue bs 24 zi Chirapenea Ctinak Mi seta AW wera? is Ze nt btext 2 Pweg LiWsods Mo A LF ee T, dl Hie . YH. KEW ? Cank \ PS capaate —* —4 8 Ne i \ 4 : Kongelsp SEG eth Sua 2hlodt Megsr 2 Vhs Fab Web 44 “Outing wea with VAG bor UG binding capacity aM, .! | i Statistical comparisons rescaled no sigaidseaat differ ence Cp 10S) between any af the groups, i u nag dl Te we He owt pe ke Figure (0. “Divnostoe-binclig ghdaalin bevels den seeasere gael VAG landaay «apie ny, POTS,