32
counts at 11 years (7.4 « 10° in the exposed and
7.3 X 10° in the unexposed).
Differential counts showed neutrophils and lymphocytes to have very nearly the same meanlevel
red cel] counts and hematocrits at 11 years (see
Figures 59 through 64).
During the 12-year survey, counts were done
only on the exposed group, and no comparison
for exposed and unexposed Rongelapese at 11
with unexposed was done because of annual
years. Graphic treatment of these elementsis presented in Figures 49through 54. The similarity of
counts between the two groupsis probably best
seen in the cumulative percent distribution curves
(Figure 55). The levels of eosinophils, monocytes,
variability in counts. However, the hematological
findings at 12 years in the exposed group are not
i
i
T
i
j
i
FEMALES
and basophils were not remarkably different be-
1965
females (Figures 55 through 58). The closeness of
counts in the two groupsis best seen in Figure 55.
LEUKOCYTES ANO NEUTROPHILS « 10 >
Erythropowetic function appeared to be aboutthe
same in exposed and unexposed groups based on
aT
NEUTROPHILS x1073
tween the exposed and unexposed groups and
were similar to the levels in past surveys.
Platelet counts at 11 years were about the same
in the exposed and unexposed in both males and
Is
LEUKOCYTES
ok
6tte
*
ea
4—
~
2h
*
é .
at”
W
2 40
DAYS
o 3.
+
A
*
“>
4i
20
bls it pb
50
60
70
80
ac
Figure 51. Neutrophil counts of Rongelap exposed I[emales plotted against age. Solid line represents mean ievel
of unexposed female population, 1965.
=
it it
40
AGE (YEARS)
tt
56 726! 2345 67 8 9 i 2
MO
YEARS
TIME
30
‘ph Eto 45
NEUTROPHILS
or lLitilitisi
08
s
AFTER EXPOSURE
T
T
T
Figure 49. Mean neutrophil and white blood counts of
Rongelap exposed people from time of exposure through
12 years post exposure. Stars represent mean values of
comparison population.
Ptitid tpi Pt tit bt
Qa 2 40 56 72612345 67 89”
DAYS
MO
YEARS
TIME AFTER EXPOSURE
NEUTROPHILS * 10°73
MALES
6.0
'965
.
nm
LYMPHOCYTES x 10°?
MOTT TT TTT PAT Po TT
i
Figure 50. Mean lymphocyte counts of Rongelap exposed
people from time of exposure through 12 years post
exposure. Stars represent mean values of comparison
population.
20
30
40
50
60
AGE (YEARS)
70
BO.
Figure 52. Neutrophil counts of Rongelap exposed males
piotted against age. Solid line represents mean level of
unexposed male population, 1965.