= = . = = 6 > “¢ « Table 46 HEMATOCRIT, ALL EXPOSURE GROUPS , Rone liap bay : ‘ 4 Males Athinginac Comb ~~ 2 Ht 22 23 265 Fenudes 5 D “5 «5 Males . ee ee +5 5 Utirik Females - >6 —— 5 Comb eo >5 <5 . Comb Malem <5 ~5 Adults - 6 3H.1 42.5 38.0 99.1 34,1 40.7 37.5 40.6 37.0 39.4 37.3 40.6 24 a0 a3 30 36.9 30.1 40.5 $4.5 97.7 36.4 39.2 36.0 44.6 32.0 37.2 34.7 39.7 36.8 41.0 34.8 37.9 25.9 19.0 35.5 45.8 48.0 37.2 36.3 99.4 36.4 41.6 36,0 97.6 36.2 40.0 35.0 45.6 35.0 37.6 35.0 40,3 43 42.9 42.8 Controly 3H.5 45,2 38.0 97.5 40.6 44.0 40,3 37.8 45.0 38.5 46.2 97.3 40.6 37.0 44.5 45.4 4.7 35.7 41.0 36.2 37.6 35.9 39.6 36.0 45.2 35.0 37.0 35.7 38.7 47 , o so 45.7 35.6 40.3 35.3 98.0 35,6 3%1 36.5. 45.2 34.0 36.7 37.0 38.9 28 Ronperth Comb 43.0 37.8 43.0 bi -_ rs rer . a . 44.9 "Age la years, 4.12 COMPARISON OF HEMATOLOGICALFINDINGS IN CHILDREN AND ADULTS, RONGELAP GROUP It is seen from Tables 4.2 to 4.4 and Figs. 4.1, 4.2, and 4.4 that differences in the degree of depression of cellular elements werepresent between children and adults. In Table 4.9, the mean values of the neutrophile, lymphocyte and platelet counts at time of peak depression for each element are given in terms of absolute count and per cent of appropriate contro] value (mean platelet counts were calculated for the iess than 5 and greater than 5 age groups for this . comparison). — Table 4.9 —_t COMPARISON BY AGE OF MEAN NEUTROPHILE, LYMPHOCYTE. AND PLATELET COUNTS IN THE RONGELAP GROUP AT THE TIME OF PEAK DEPRESSION Absolute Count » 105 Per Cent of Control Type of Cell Age <5 Age <5 Age >5 Neutrophile 2.7 3.1 56 64 Lymphocyle 2.u 2.2 40 54 Platelets 115 122 30 a6 Age >5 ‘ L It is seen that in terms of absolute counts, the children showed a greater depression of the neutrophile count, and the same degree of depression of the platelet counts and less depression 4.13 DISCUSSION 4.13.1 , , bee eee a of the lymphocyte count. These differences can be most easily described at the time of peak depression. Expressed as per cent of control, all elements were affected more markedly in the younger age group. These results would indicate that children are more sensitive to radiation, or that other biological or physical factors resulted in a relatively greater effect. General ; An estimation of the severity of radiation damage incurred can be attempted by comparing we pee the present results with previous hematological data on total hody exposure. The present data to aenae * * e enanovee * he rsee wears eshaeee . etree te * dase . . ey 82