38.8
5,
‘
Eh i
RONGELAP
“2
ris
98.0
on”
WOTJE
KWAJALEIN
i
MAL OELAP
SMEs eSLIEE EL
Islands
=
anes
aaa
TOG MILES
Fig 1.—-Marshall Islands. BRAVO test site is shown on Bikini Atoll. People on
Fig 2.—Prevalence of thyroid nodules. Atolis shown in color inset wer
assumed unexposed to radioiodine from nuctear fallout.
‘.
&
:
Prevalence of nodules (%)
a
SO=-nNH424NEOWHN
OS
Aa
ok
v
Table 2.—-Proportions of Atoll Populations Screened
for Thyroid Nodularity
Utrik
Majit Island
Alluk
Estimated
Popuiation*
201
287
278
353
Wotje
Maioelap
Lae
Ujae
Wotho
Jaluit
Ebon
Ml
Subtotal
Majurot
Kwajaieint
Total
466
534
206
269
74
1295
7e2
681
5855
10 791
6061
22707
Ato
Likiep
20
300
400
Distance (mies)
S00
«00
AS
419
Totat No. (%)
Screened
122 (61)
184 (64)
263 (95)
217 (61)
137 (33)
364
443
149
187
34
759
517
319
3735
4723
1806
7268
(78)
(83)
(72)
Ca,
(46)
(59)
(65)
(47)
(64)
(16)
(30)
(32)
28
es
Pr aes
other atolls were screened for thyroid nodules.
100
4.5 aes
8.7
Lee te)
ba
100 MILES
0
eC
S SaaS
a 8)
_
w
Me
Prrety
UTRIKG?
tk
Q
LURETg
&
LIKIEP
Probability of thyroid nodule
ia)
WOTHO
iaoed
RONGELAP
2
Fig 3.—Weighted linear
popu
BRAVO test on Bikini Atoll.
tan Ty
an
Le,
lations was not
wtolis who hed lived on the other 13 primary atols in
1954 were screened.
RONGELAP
j
roe -
Fig 5.—Probability contours. Graph shows fitted probability contours for thyroid
nodutes for females, computed from complete logistic mode!. Distance was
calculated for each contour of fixed probability, given mean age of females, for
values of 6 from 0° to 80°.
Poet
aioe me ES t-)
JAMA. Aug 7, 1987—Vol 258. No. §
Thyroid Neoplasia—Hamitton etal
631