Mr. Roger Ray July 18, 1385 Page 2 Effects on Longevity There {s no evidence that prolonged residence on Rongelap since 1957 has resulted in a shortening of life expectancy: Residence Category Short-term Intermediate tumber of Deaths 20 e7 Long-term 5 Total " 52* Nean age at Death 61.4 years 66.6 years Average 70.0 years 64.9 years * Does not include 2 accldental deaths. Effects on Thyroid Neoplasia There 1s no evidence that prolonged residence on Rongelap since 1957 has resulted In an increase in thyroid neoplasia. Nine unexposed persons in the Comparison group have had surgery for thyroid nodules: Residence Category Short-term Intermediate Long-term Number of Fersons 58 46 Total 29 133 Number with Mean Age in 1985 (yr) 47.1 46.4 46.9 Thyrold Nodules Removed & (7%) 3 (7%) _2 (7%) Humber of Thyrold Cancers 1 0 1 9 2 These figures apply to the 133 unexposed persons In the Comparison group who are living. alive. All of the 9 persons who had thyroid nodules removed are st11) Effects on Slood Counts (1985 data) There Is no detectable effect of residence on Rongelap on blood counts: Residence Number Neutrophils/ul Short-term 24 465122089 Category Intermediate Long-term Tested 40 26 +SD Lymphocytes/u) +50 Platelets/ulx10 27548 1006 - 3838% 992 836621551 28352 908 2612% 787 250 27eeit1 292% 59 262% 51 A test of equality of means showed no statistically significant differences among the three categories. Note that the number of blood tests performed (90) is less than the number of persons in the Comparison group. because not all were seen in the March-April, 1985, survey. 58 This is