20
Tabie 12
Iodoprotein Levels (IP) in Populations Under Study (ug%) 1966 - 1969
Nonexposed and low-dose groups (no thyroxine treatment)
Ailingnae
Subject
No.
6
8
70
39
Curik
Age (1969)
& sex
IP
16
i6
30
40
5.8
2.8
1.9
2.5
M
F
F
F
Subject
Age &
No.
Sex
2101
2146
2119
2166
Av. 3.2
Rongelap nonexposed
62
51
33
54
2125
M
F
F
M
32 M
Subject
IP
Age &
No.
sex
7.9
7.0
8.1
79
813
816
822
833
15
19
22
36
M
F
M
M
1.9
6.4
1]
1.5
Av. 7.9
843
855
40 F
64 M
3.2
7.3
8.5
835
35 M
858
74 F
914
931
932
938
956
34
15
34
30
60
1532
Rongelap people not on thyroxine
With thyroid lesions
( before surgery )
Subject
No.
3
3
2
23
IP
Subject
No.
16M
16M
17M
19M
1.3
1.3
2.0
1.8
32
27
74
68
72
15
21 F
22 F
9.2
10.2
18
64 -
36 F
45 F
1.0
4.5
36
22 M
1.0
34
I
F
M
F
F
F
19 F
2.3
14.5
9.2
0.7
6.7
1.9
6.4
3.5
Av. £.8
Thyroidectomy
No thyroid lesions
Age &
sex
IP
Subrotal
Total
Age &
sex
iP
Subject
No.
Age &
sex
IP
Subject
No.
Age &
Sex
IP
18 M
27M
SIM
59 M
1.7
3.3
1.7
3.7
17
23
33
34
17M
19M
16 F
16M
3.5
1.7
1.3
0.9
17
21
64
3*
i8F
18 F
45 F
16M
2.9
17
4.1
1.3
18 F
4.2
60 F
65 M
3.4
3.6
Av. 2.9
Av. 3.6
65
19
16 F
18M
20
61
22M
23 F
42
3.3
0.9
5*
16 M
1.3
Av. 2.6
1.3
6.7
Av. 2.6
*Placed in this category because of nearly complete atrophy ofthe thyroid gland.
dose from the various iodine isotopes to the child’s
gland was about 1000 rads, with a range of 700 to
1400 rads. The glands received an extra 175 rads
from external gamma radiation.
Previous Thyroid Studies
Even before the developmentof thyroid nodules
was noted, the evaluation of thyroid status of exposed individuals received considerable attention,
since it was recognized thatthe slight growthretardation noted in someof the children might be
related to radiation effects on that gland. However, on the basis of physical examinations and
serum PBI and cholesterol determinations each individual examined at that time was believed to be
euthyroid. It soon became apparent that the average serum protein boundiodine in the Marshallese
of both Rongelap and Utirik was higher than