35
ot
TOI
T
T
e
50 +
4
45+
4
40 +
4
35
Lymphocytes. The mean level of the lymphocyte counts (Table 21 and Figure 35) in 1959
showed slight increase over the 1958 values. The
+
i]
Oo
_
&
« 35
2
w 30F
—
e UNEXPOSED
¢
4
$
4
Lad
_
a
zc 25k
20
—
*e
°-
.
+
Be
~~
*
re
Oo
iO
I
20
i
i
3%
40
AGE (YR)
1
5SO
l
60
|
70.
80
Figure 39. Individual platelet counts of exposed males
plotted against age, 1959. Solid line represents meanlevel
of comparison male population.
55
7
50 f-
=
meanlevels were about the same in the exposed
and unexposed populations. A scattergram (Figure
36) of the age distribution of the lymphocyte
counts in the exposed group for the first time
showed aboutan equal!distribution in the exposed
population of counts above and below the mean
levels of the unexposed people. The cumulative
percentage distribution curves of the exposed and
unexposed (Figure 37) showed close approximation. The 1960 absolute lymphocyte counts also
showed a decrease corresponding to the WBC decrease, the mean dropping from 4000 in 1959 to
2700 in 1960.
Eosinophils and Monocytes.
Eosinophil and
monocyte counts showed slight increase in 1959
over the 1958 levels and were slightly greater in
the exposed population. As noted in 1958, a large
percentage of the population had eosinophil
counts >5% of the total white count (1959, 44% of
35h
46% of exposed, no data on unexposed). Thelevels
of eosinophils and monocytes in 1960 were not
very different from the 1959 levels. (Basophils are
discussed below in connection withleukemia.)
Platelets. Mean platelet counts in 1959 (Table
21 and Figure 38) wereslightly lower than in 1958
.
UNEXPOSED
io _1
o
10
i
2
1
30
1
40
L
60
50
AGE
!
70
80
(YR)
This was also borne out by comparison of the
Figure 40. Individuai platelet counts of exposed females
plotted against age, 1959. Solid line represents meanlevel
of comparison female population.
CUMULATIVE PERCENT
100
80
PERIOD
MINIMUM
COUNTS
_~
(DAYS 26301"
lation was about the same aslast year ( — 9.3% for
the males and — 11.3% for the females). Age distribution scattergramsfor the individualplatelet
counts in both males and females of the exposed
population showed more counts below than above
the unexposed mean curve (Figures 39 and 40).
ro
in both the exposed and unexposed populations.
The meandeficit in platelets in the exposed popu-
25 -
T
a
cumulative percentage distribution curvesfor the
exposed and unexposed populations: the latter
showed continued displacementto theleft (Figure
41). The significance of the continued platelet de-
pression in the exposed population is also indicated by the findingof levels <( 250,000 in 37% of
the exposed group but in only 24% of the unexposed.
Erythropoetic Function.
Because of technical
difficulties, the hematocrit levels were not con-
O SYRS POST EXPOSURE
4 COMPARISON POPULATION
a
~
L
29
j
3?
L
45
|
53
tL.
61
PLATELETS x1o74
Figure 41. Cumulative distribution curve,
Rongelapplatelets, 1959.
69
sidered reliable for the 1959 survey. Samples containing ethylenediaminetetraacetic acid as an
anticoagulant appeared to have a lower hemato-
crit than untreated venousorfinger stick blood.
ensy
PLATELETS xta-4
preg
exposed population and 39% of unexposed; 1960,