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53
Mr. Roger Ray
July 18, 1985
Page 2
Effects on Longevity
There Is no evidence that prolonged residence on Rongelap since
resulted in a shortening of life expectancy:
Res(dence Category
Humber of Deaths
Short-term
Intermediate
20
27
Long-term
5
Total
52*
"
[1957 has
Mean ane at Death
61.4 ycafs
66.6 yeafs
Average
70.0 yeas
64.9 yeafs
* Does not include 2 accidental deaths.
Effects on Thyrold Neoplasia
There is no evidence that prolonged residence on Rongelap since
resulted In an increase In thyroid neoplasia. Nine unexposed persons
Comparison group have had surgery for thyroid nodules:
Residence
Category
Short-term
Intermediate
Long-term
ere living.
alive.
Number
Mean Age
of Persons
Tota]
58
46
29
133
in 1985 (yr)
.
47.1
46.4
46.9
Number with
Thyroid Nodules
Removed
& (7%)
3 (7%)
2. (7%)
Humber of
Thyroicd§
Cancers
9
All of the 9 persons who had thyroid nodules removed are
9tI1]
Effects on Blood Counts (1985 data)
There is no detectable effect of residence on Rongelap on blood c
Residence
Category
Short-term
Intermediate
Long-term
Number
Tested
24
40
26
Neutrophils/ul
#50
465122089
- 38382 992
- 436621551
Lymphocytes/ul
___ #50
275441006
2835+ 908
2612 787
nts:
Platelets/ulx103
2S
279411
292t
262%
A test of equality of means showed no statistically significant differe
among the three categories. Note that the number of blood tests perfo
(90) 1s less than the number of persons in the Comparison group. This [s
because not all were seen in the March-April, 1985, survey.