13
exposed males of the same age (see Table 6). How-
with the lymphocytes, the platelet counts are the
highest yet attained since exposure. However, the
unexposed group also showed an increase in mean
ever, the other blood elements in this group of
males do not appear lower than in the unexposed
group. A general anemic tendency in the Marshallese (combined exposed and unexposed groups)
platelet count compared with last year; but the
exposed grouplevels arestill significantly below
is borne out by the finding that 78% of the females
the unexposed (males, <10, —16%; >10, —11%;
and females, all ages,—9%). This is also borne out
by the following findings: (1) 22% of the exposed
group have levels below 250,000 compared with
only 7% in the unexposed people; (2) the scatter-
have hematocrits of 36% or less and 54% of the
males have hematocrits of 38% or lower.
Counts in the Ailingnae group. From Table 4
it can be seen that the counts in the 18 people of
this group averaged nearly the samefor the various blood elements as did the counts in the more
heavily exposed group. Lymphocytelevels and
platelet levels in the males wereslightly lower,
however. These samedifferences were noted at
the time of the 3-vear survey.
individual counts. In reviewing the individual
peripheral blood counts, lower levels were found
in more exposed individuals than in the unexposed group. Those showing generally lower
counts in the two groupsare listed in Table 7.
grams (Figures 13 and 14) show more counts
below than above the unexposed mean curve in
both sexes; and (3) the accumulative percentage
distribution curve (Figure 15) is displaced to the
left of the unexposed curve.
Erythropoietic function as evidenced by hematocrit levels showslittle difference between the exposed and the unexposed groups, and neither
group showssignificant changesince last year.
The exposed males >15 years of age continueto
showslightly lower hematocrit values than do un-
Table 4
Ailingnae Group and Control Mean Blood Counts by Day and by Age
WBC
(x 1073)
Neutrophils
(10-7)
Lymphocytes
Platelets
(x 10-7)
Monocytes
(x 10-*)
(xX 10°? }
Eosinophils
(x 1077}
Postexposure day
<5
>5
<5
>5
<5
>5
Male
<10
Male
>10
Female
allages
Total
group
<3
>5
<3
>5
3
60
70
30
30
2.8
2.2
—
—
_
—_
08
1.6
0.5
O44
47
43
53.0
5.4
4.4
6.2
35.2
4.2
3.6
38
3.1
4.2
3.3
2.7
3.2
3.7
3.5
4.7
3.9
3.4
2.2
2.2
24
2.9
2.2
2.0
2.2
1.9
2.7
2.7
—
29.0
27.5
23.5
20.0
19.5
24.0
26.5
28.0
27.0
—
20.2
21.7
17.0
(3.8
12.8
15.8
20.8
19.6
20.0
44
23°
3.2
3.8
06
4.1
5.0
27
2.8
135
26
14
23
24
1.6
20
1.9
16
0.6
O07
3.5
3.9
4.7
5.1
3.9
3.2
2.7
6.5
4.8
5.6
2.5
2.2
53.6
3.2
2.6
37.0
25.2
38.7
51.2
40.8
19.8
19.2
21.4
17.4
22.4
4.1
41.2
25.8
2.9
32.6
7
10
12
15
18
22
26
30
33
39
43
47
31
5.5
6.3
6.8
7.3
63 76
7.1 70
68 78
89 87
8.4 70
96 86
7.7078
75 62
69 65
7.3 67
8.4
6.3
_
4.2
_
4.2
3.8
3.6
1.8
#23
29
53
48
5.3
3.3
29
2.7
#35
54
6-mo survey
1-vr survey
2-yr survey
3-vr survey
46
77°
1h.1
11.0
12.1
63
65
78
9.1
70
28
48
42
49
35
Majuro controls
13.2
9.7
+8
98
69
4-vr survey
Rita controls, 2 yr
Rongelap controls, 3 yr
Rongelap controls, 4 yr
11.5
14.1
11.2
7.5
8.9
80
28
70
40
40
3.7
4.8
4.4
3.4
3.6
—
19
4.0
7.
7.40
5.6
47
6.2
_—
2.2
22
3.3
3.6
3.7
—
22.5
32.0
33.2
35.5
38.8
—
22.6
_—
20.9
18.2
25.0
24.7
24.2
26.9
30.7
_—
21.5
—
38
_
21
2.7
2.8
—
24.6
24.9
22.9
17.4
18.2
22.7
27.0
25.3
26.1
—
23.9
24.3
21.3
16.7
16.8
17.6
25.2
24.0
24.5
3.4
3.8
3.7
2.6
2.3
1.5
135006
624
2.3
24
19
=1.9
28
2.2
Ll?
06
IL.
2.2
19
23.8
23.9
28.3
26.4
31.2
24.2
22.7
27.5
26.7
—
15
619
Ll.
10
Ll
3.6
4
3.0
0.7
33.6
36.5
31.2
30.0
34.0
23.9
—
33.4
29.5
—
22
13
12.8
Ll
70
14
07
—
1.6
1.0
1.8 08
15 22
i.7 2.2
9.6 o4
3.30037
12.6
2.0
2.3
2.2
Ll
2.0
14
—
2.6
4.2
95
47
6.2
40
6.6
435