11
Table 6
Mean Blood Count by Age and Sex for the Exposed and Control Groups
_
Rongelap
Ailingnae
Utnk
WBC (10°)
3-5
>3
8.6 (8)* 1.8
6.9 (54)21.7
12.1 (2)
7.0 (16)1.6
10.8 (13) 3.5
7.8 (108)+3.2
Neutro (10° )
3-5
4.1
+17
fe)
3.7
+11
3.9
3.7
0.6
3.6
>5
#13
Unexposed
Rongelap
9.8 (5) 21.6
6.9 (80)1.5
5.6
72.7
4.0
+1.4
4.1
wiS5
3.4
1.1
44
1.8
4.7
=w=15
Lymph(10?)
3-5
>5
2.7
0.8
2.6
+0.6
3.3
71.3
2.9
*0.8
Mono(10?)
3-3
1.2
>5
Eosin (10? )
3-5
>5
0.9
3.0
0.7
0.4
0.7
+05
6.4
4.5
2.2
+3.0
3.3
3.7
2.3
0.7
0.8
0.4
0.9
0.7
1.4
*+0.6
5.8
2.8
7.4
22.7
6.2
4.0
*#5.5
2.6
0.6
Platelets (10* )
Males 3-10
>10
Females > 3
32.0 (9) +5.6
22.1 (20)225.3
28.1 (33)+6.8
40.3 (2)
22.4(5) 3.8
31.2 (1I)=6.9
39.5 (18) =-8.8
28.3 (35) +6.2
31.2 (67) 7.3
32.6 (10)==7.0
26.9 (40) 5.5
30.0 (34)2-7.7
Hematocrit
Males 3-10
>15
Females > 3
35.6 (13) 2.4
38.7 (16)23.2
35.4 (33) +2.6
37.5 (2)
40.6 (5) 1.5
36.5 (11)23.2
37.0 (21) +3.8
40.2 (31) £24
35.9 (68) +#2.9
35.6 (17) 2.4
$1.0 (34)3.1
35.9 (34)42.4
*Numbers in parentheses refer to numbers of people in age groups.
sex.* The hematological data are presented in
tabular form in Table 6 and graphicaily in Figures 7 to 15. The mean of three separate absolute
blood counts on the individuals was used in obtaining the over-all mean for comparison among
various groups.
WBC. The meantotal leukocyte counts were
about the samein the exposed and nonexposed
Sex
“Leukocytes:
Platelets:
Hematocrit:
Unexposed
Age,yr Rongelap Ailingnae Rongelap
both <5
both >5
8
36
2
16
5
80
M
F
>10
ali ages
22
33
3
tl
40
34
M
F
315
all ages
19
33
3
tl
34
34
M
M
<10
<5
9
{2
2
2
10
17
people (Table 6 and Figure 7). Comparison with
last year’s counts shows the leukocytes to have
dropped slightly in contrast to the steady increase
seen at six months, one year, and two vearsafter
exposure. However, the present control group also
shows a correspondingly lower mean than the control groups of previous years.
The numbers of neutrophils wereslightly higher
than in the unexposed group in both the >5 and
<5-year-old age groups (Table 6 and Figure 7).
Figure 8 showsthe age distribution of individual
neutrophil counts compared to the mean control
level, The counts are seen to be distributed about
equally above and below the mean controllevel.
Amongthe exposed people, 9 (14.5%) showed
neutrophil counts below 2500, and 15 (17.6%) of
the unexposed people showed counts atthislevel.
Compared tolast year’s level, the neutrophils have