37 T T Ts ] | q T ~| T T MALES 1964 ° 3B E 9g a: _ 3 LO f9K t J 1 20 i 30 | j t 40 50 60 AGE (years) 790 | 80 T ] ] T I I T 90 (964 16- | 5b . {4}, « — . e oe . Zl3r_, o s 3 12h w Ile ° « . * e e 7 e ° e 7 | | e lO i > * * ‘ a 4 . 10 20 30 40 30 60 AGE (years) 7 80 30 Figure 48. RBC values of exposed males plotted against age. Solid line represents meanlevel of unexposed male population, 1963. 540-7 I FEMALES z e ] 4 Figure 46. Hemoglobin values of exposed males plotted against age. Solid line represents mean level of unexposed male population, 1964. Q T MALES 1963 7 10 a E S, T — tle = T RBC x 104 4 mo J T ° 4 o Ss 3 = T T I T T T 500+ * a 460-. e ° TT FEMALES 1963 4 es 2. *. . . 7 420 ; 7 380 4 340 = 4 { 1d 20 L 1 l & 1 1 30 40 50 60 70 80 30 AGE (years) Figure 47. Hemoglobin values of exposed females plotted against age. Solid line represents mean level of unexposed female population, 1964. Ailingnae Population. The 16 people in the Ailingnae population that were examined during these two years showed blood countssimilar to those of the higher dose Rongelap group. The 10year platelet counts in the Ailingnae women were considerably higher than the previous counts; the reason for this is not apparent. The blood data on this group of people are summarized in Tables 18 and 19 and Appendix 2. Utirik Population. The people of Utirik Atoll who had been exposed to a very low dose ofradiation (an estimated 14 rads of whole-body gamma radiation) had leukocyte, neutrophil, and lymphocyte counts of about the same levels as seen in the unexposed comparison population of Rongelap Cc 3 M2 CZ 3 co co ary (Table 18 and Appendices 3 and 4). However, it 300 t Id 1 20 a! 30 j { ! 40 50 60 AGE (years) L 70 L 80 J 390 Figure 49. RBC values of exposed females plotted against age. Solid line represents mean level of unexposed female population, 1963. wasof interest that the platelet counts for all age groups averaged considerably higher in the Utirik people than in the Rongelap unexposed population. The explanationforthis is not apparent. The erythrocytes, hemoglobin, and hematocrit levels were — aboutthe sameas in the unexposed Rongelap people. Children of Exposed Parents. Blood counts of children of exposed parents compared with those of the children of parents in the comparison population showed nosignificant differences. These data are tabulated in Tables 18 and 19 and Appendices 4 and 5. During the 7th and 8th-year surveys these children had shownslightly lower levels of leukocytes and platelets compared with children of unexposed parents. This differenceis not apparentat this time.