12

of the counts compared with the mean curve of
the unexposed neutrophil counts showsthat children about 12 vears of age and below have more
counts below than above the mean curveof the
unexposed children of the same age range. How-

below than above the mean unexposed curve. An
accumulative percentage distribution of the counts
(Figure 11) shows the exposed curve still to be
slightly displaced to theleft.

posed groups (Figure 9). It is this increase in

their differential counts, 45% of the exposed and
55% of the unexposed had eosinophils of 5%or

Eosinophil and monocyte and basophil counts

are about the samein the exposed as in the unexposed groups. The eosinophil counts were quite
high in both exposed and comparison populations,

ever, above this age the distribution of countsis
about the same.
The mean of the lymphocyte counts shows an
increase since last year’s counts of 33% in the ex-

but were about the same in the two groups. In

lymphocytes that accounts for the rise in the total

white count noted above. The lymphocytes in the

greater.

exposed group are at the highest point since exposure, However, a scattergram (Figure 10) shows
that more of the counts in the exposed group are’

Mean platelet counts have shown further recovery this year in both sexes of the exposed group

compared withlast year’s results (Figure 12}. As

Table 3

Rongelap Group and Control Mean Blood Counts by Day and by Age

WBC
(x10)

Neutrophils
(x10°)

Postexposure day

<3

D5

<5

D5

<5

>5

3

9.0

8.2

6.4

4.7

18

2.2

26

5.7

6.1

7
10
12
15
18
22

30
33
39
43
47
51

56
63
70
74

6-mo survey

4.9
6.6
59
59
6.7
7.0
7.6
6.5
5.7
5.2.

62
7.1
6.3
65
7.2
74

—_
3.5
3.5
3.2
3.4.
43
3.0

Lymphocytes
(x10)

061.2
0.9
—
—

—
0.3
3.4
—_

24.9

0.7

1.3

30.4

19

4.2

3.6

2.2

5.2

4.7

3.7

*Excluding pregnancy.

98
11.2

69
8.0

4.0
+0

1.0
L.6

1.7
0.5
—_—

34

Rongelap controls, 3 yr
Rongelap controls, + yr

10
2.5

—
20.1
—
24.1

76

7.0

1.6

—
20.2
—
24.7

2.4
2.1

10.7

8.9

1.9

—
18.2
—
21.7

3.1
3.4

Rita controls, 6 mo

14.0

11.9

—
23.1
—
26.2

3.3
3.5

28

Rita controls, 2 vr

0.7

3.4
2.6
05
L4

46

—

Ol

15
0.9
17
61.6
09
09
Lt.

48

—

0.3

12.3
16.0
22.8
23.2

4.7

—-

08

11.8
15.1
22.4
23.2

8.3

Rita controls, | vr

—

12.3
16.6
22.0
20.9

10.1

39
410°
3.3
48

—_

14.1
17.9
25.5
26.8

1.8

24
2.3
2.2
—

6.6
69
7.5
9.7

>5

2.1
2.0
2.0
2.3

2.3

3.7
3.7
3.3
—-

11.8
8.6
8.9
13.2

<5

3.2
3.2
2.6
29

3.9

{-yr survey

2-vr survey
3-vr survey
+-yr survey
Majuro controls

“>5

—_—
24.8
—
22.5
21.0
15.3

3.5
3.6
4.0
—

46

<5

—
24.9
—
21.7
21.8
15.2

35
3.9
3.8
—

6.6

Total
group

—
22.7
—
21.3
19.1
14.6

70 60
7.7 60
7.6 6.5
a
8.5

—

Female
allages

—
28.2
—
27.1
21.8
16.8

5.3
3.8
3.3
2.6

2.6
2.6

_—

Male
>10

Eosinophils
(x10 -)

eo
2.6
2.1
2.1
17
24
19
24
21
2.6
21

40
3.1
3.0
2.0

3.8
5.6

Male
<10

Monocytes
(x10 *)

—
4.5
3.9
41
4.7
5.0

78
6.2
3.5
3.2

5.9
6.7

Platelets
(x 10°")

4.8
37
3.4
48
—

4.4

34
3.6

4.7
3.7
46
7A
—

5.6
4.7
6.2

3.1
27
3.6
41
—

3.6

29
37

13.2

24.6
22.1

12.9

20.6
17.5

24.4

20.3

30.0
32.0
32.5
41,2

21.4
22.1
27.1
25.8

37.5

24.5

26.6

35.0

23.9
21.2

23.2

19.5

27.6

27.3

30.9

35.5. 24.2
32.6
38.8

10.9

26.9
30.7

25.5
28.1
30.8
36.5

23.1
20.3

22.6
24.7
—
—_
33.4

29.4*

27.6

30.0
34.0

—
—

31.2

29.5

ao
2.9
1.7
42
54
3.0
2.3
2.7
1.7
19
=-2.0

1.4

bl

—
16
19
Ld
3.5
2.3

18

1.1.
0.8

2.5

6.7

2.7
12
1.5
2.0

1.5
0.7
1.1
2.0

9.6
6.4
7.9
95

—

—

—

L4

14
23

7

1.5

0.7
Ll

42

12.8
6.2
7.0

—
1.6
19
1.3
1.6
18
4.3

2.2
22
1.0
08

0.5
0.7

—
0.6
19
=
1.6

2.8

3.3
4.5
4.0
47

48

—

66

4.0
+45

Select target paragraph3