Table 4.7)
ALLINGINAR GHOUP MEAN BLOOD COUNTS AT CTIME OF PEAK DE PIE SSION
Case No.
W.B.C.
Platelets * 10
Neutrophiles
Ly iiphooytes
(Average from
Diy 9 to 41)
(Average trom
Duy 26 to 40)
(Average from
Day a to Shi
Average Grom
Lhav ish tar ood)
—_—
ti
4
44
-
~
—
r
Age Less Than 5
9750
21s
4570
180
xnho
all
KI
G20
6170
4700
i.
1
Dh
3470
4G00
2350
ag
4820
duoe
Ane 6 lo LS
Aw
oS
i
ro
ht
i-
re
“10
970
240
240
3150
A700
waa
noo
21d0
tao.
r
Eo
f
Age Greater Thin bo
t
16
2H
29
31
4]
4570
2200
3720
4100
2950
3050
2370
2270
w270
2220
2450
2270
140
4170
1470
170
105
4620
4120
6150
215
5u
7050
95
51
99
r
178
195
115
115
145
110
43
45
70
4.5
6170
4GTO
6270
6750
565U
SL2U
5650
7750
12400
5070
.
3700
2970
185s
4000
RONGELAP GROUP
.
iv
[
2000
f
2900
I
2950
3670
i
1750
_
The absolute neutrophile count of both the younger and older age groups fell during the
second week fo u value, approximately 70 to 80 per cent of that of the controls (see Fig. 4.1).
Following the depression of the total neutrophile count during the second week, the values were
unstable until the fifth week. Alt this time the beginning of a second drop (P < 0.01) was noted
for both age groups, and a low value of approximately 50 per cent of controls was reached, The
count was maintained al approximately 75 per cent of control values from the seventh week to
a
i
7
ro
the end of the study. Although both age groups followed the same general time pattern of response, the lower age group was below that of the older group throughout most of the observation period,
The absolute lymphocyte count of the older age group (Fig. 4.2) had fallen by the third day
to a value approximately 55 per cent of the control group. This value was maintained throughout the study, and there was no definite evidence of an upward trend during the study. The
values for the younger age group likewise fell before the third day to a value approximately 25
lymphocyte count, there is a consistent difference between the two age groups. However, during
the first four weeks the difference {s accentuated when expressed as per cent decrease because
of the relatively high lymphocyte levels in the lower age control group. After this period the
differences expressed as per cent are less marked since recovery was more rapid in the
younger age group,
The cellular elements chiefly responsible for the fluctuations in total white blood cell
4
4
’
*
79
re eee
- ee ee
count can be determined by comparing the total white, neutrophile and lymphocyte counts (Fig.
4.3). It is seen that the lymphocyte count remained essentially constant throughout the period
of study, while the total neutrophile count fluctuated with a pattern essentially identical to that
aa
per cent of the control, following which there was a significant upward trend. With the total