HEMATOLOGIC OBSERVATIONS
fall to reach a low of approximately 60 percent
of control levels at the end of the 4th week.
The value then returned to approximately the
control level at the start of the 7th week, fol-
lowing which a second depression was noted.
Theplatelet counts were at a level of 80 percent
of the control value at the time of the last ob-
53
The eosinophile count in the older age in-
dividuals, Group I, rose from very low levels
observed on day 3 to values approximating 35
percent of control during the second week,
where it remained from the 3d to the 5th
week (Fig. 4.7). The counts then decreased
servation during the 8th post-exposure week.
AGE <
Monocytes and Eosinophiles, All Groups
From Table 4.2 it is seen that the mean monocyte count for Group I rose abruptly from an
early value belowcontrollevels to a well-defined
peak on day 12, following whichit fluctuated at
values below the control level for the duration
of the observation period. .\ similar time trend
1
E0SINOPHLES 210°
4.35
was noted in Groups IT and ITI.
Table 4.7.—GroupII Ailinginae Mean Blood
Counts at Time of Maximum Depression
Age Less Than 5
w.p.c. (Average
Flaine (Average
Neue (Average
Lympne
Pisi
Case No.
fromDey
50 to ay
|
8
8
44
|
29
31
41
43
45
50
5)
59
70
215
185
180
6,220
6,170]
4,700
”
28
2B to %)
from Day
39 to $1)
210
240
240
from Day
39 to $1)
3, 470
3,520
2,350
5, 600
4,350
2,070
2,970
3, 700
2,320
3, 150
2, 500
2,150
/
6, 170 |
4,670{
175
195
3, 570
2, 200
2,370
2, 270
|
6, 750
5, 650
5, 120
6,150}
11S
145
110
218
4,100
2,950
3,050}
3, 700
2,
2,
2,
2,
220
450
270
000
7,050 |
7,750}
12, 400
| 5, 070
95
170
105
185
3, 970 2,
4, 620 2,
8, 120 | 3,
3,000 | 1,
900
950
670
750
| 5,650!
|
|
115
180
3,720
24
320640
POST EXPOSURE DAY
tS
Fiovre 4.7.—Serial eosinophile counts on those less
than and greater than 5 ycurs of age of Group I
( Rongelap).
(p>0.01) and remained at a value approximately 15 percent of control throughout the
remainderof the study. The time trend of response was similar in the younger age individuals, however changes in the younger age group
were relatively greater if considered in terms
of the control values. Similar trends in
eosinophile count were not evident in other exposure yvroups.
It is possible’ that the rise in eosinophiles
represents that reported by Minot and Spurling
Age Greater Than 15
| 6,270 |
6
L
Age 6 to 15
48
53
81
1
16
from Day
9,750
8, 350
4,570
|
Ni
o
2,270
4,170 1,470
(11) as occurring “—— twoto three weeks after
short wavelengthirradiation”.
4.36
Hematocrit, All Groups
The hematocrit values for all exposed groups
are shown in Table 4.8. When hematocrits were
first done on the 22d day, mean values for
Groups [and II were below those of the control
population. A significant trend in values after
this time could not be detected statistically.