35 any of the two- or three-factor interactions (years, sex, exposed versus nonexposed, age groups) were FEMALES i963 PLATELETS 2 104 counts of all four components with increasing age at the time of radiation. There was no evidence at the 3% level of any sex difference for any of the blood components exceptplatelets, for which the male count wassignificantly lower (1% level) than the femaie count. “There was no evidenceat the 1% level that significant. For lymphocytes there was evidence at the 5% level of an interaction between exposure a 10! and sex, and for neutrophils there was evidence at the 3% level of an interaction between exposure and year. The four-factor interaction was treated as error, an assumption which appearedjustified ° upon examination of the variances. Since these data are being further analyzed, no interpretation as to biological significance of the above interactlonsis justified at present.” 19 : 20 e 30 i 40 50 AGE (years) . 60 ba 70 . a0 701 MALES 1964 T i 24 Ff © ALES (AGE > iO) : o8 s PLATELETS « 104 7 3 PLATELETS «10 * w FEMALES © 3 4 % 72 cars peey del Si 2 3 4 MO TIME _ § 6 * it 3 3 AFTER TT { SOK — G EXPOSURE 9 T T— 7 MALES 1963 20 30 40 50 AGE ‘ years) 60 . 70 80 30 Figure 38. Platelet counts of exposed Rongelap males plotted against age. Solid line represents mean ievei of unexposed male population, 1964. > FO * T - FEMALES 1964 Bor , _ | 4 1 40 = \ ' = 50- YEARS Figure 35. Mean platelet values of exposed Rongelap people from time of exposure through 10 years post exposure. Stars represent mean values of unexposed comparison population. 2 - x 30 + 30 Figure 37. Platelet counts of exposed Rongelap females plotted against age. Solid line represents mean levei of unexposed female population, 1963. 60 40 — - e -+ ws ' rm — a lad 3 i 4 a ' a 1 lob 1G a 20 3% ‘4. 40 80 el eo a 70 80 4 SOF La a | ad oe i AGE (years) Figure 36. Platelet counts of exposed Rongelap males plotted against age. Solid line represents mean level of unexposed male population, 1963. —_— 2 “or ad | J a | | | - @ 30h = 20 — - 104 30 ° 4 id 4 20 1 30 i cre " 50 AGE {years} 4, 60 : TO 30 30 Figure 39. Platelet counts of exposed Rongelap females plotted against age. Solid line represents mean level of unexposed female population, 1964.