19
ined each year. Excluding those who wereshifted
into the adult study, the total over-all attrition
rate between 1958 and 1959 was 10%. Of the 18
children not seen in 1958 but examined in 1959,
14 were babies born in the interval between the
two examinations.
The age distribution of children examinedin
1959 wasas follows:
Age, yr
<4
Exposed
Nonexposed with
exposed parents
Nonexposed, Rongelap
Nonexposed, Majuro
Uurik
Hypoplasia of the middle phalanx has been reported as occurring in the normal populationin
incidences ranging from 0.5% to 5.2%. The anomaly was foundto have considerably greaterfrequency (25%) in Japanese children,.”* The over-all
incidence in the Marshallese children was 0.77%.
Pediatric dispensary work was carried out pre-
ceding andfollowing the regular examinations. In
all, 36 children were treated. The presenting complaints are shownin Fable 9.
4to9
210
Total
19
15
34
Table 7
26
9
?
26
82
15
60
Incidence of Chronic Impetigo (Active)
26
6
?
20
30
?
The occurrence of various medical conditions is
summarized in Table 6. There seemed to be no
concentration of clinical abnormalities in the ex-
posed groups. Since the incidence of manyofthese
conditions could have been related to the ages of
the children at the time of examination, two of the
Age, yr
<4
Exposed
Nonexposed with
exposed parents
Nonexposed, Rongelap
Nonexposed, Majuro
7/20
13/30
4-9
3210
Total
7/19
3/15
10/34
7/26
0/6
5/26
0/9
7/20
25/82
0/15
most frequent findings, active chronic impetigo
Table 8
lated separately for several different age groups
Incidence of Palpable Liver (Over 3 cm)
(Tables 7 and 8). The ages were based on the best
available birth date estimations. A tendency for
these findings to occur more frequently in the
youngerchildren was noted. The incidences, however, did not appearto be related to exposure to
radiation.
Duringthe physical examinations, the following
congenital anomalies were recorded:
Patent ductus arteriosus (repaired)
Deformity of the hip
Pectus excavatum
Bifid uvula
1
1
1
1
(Subject
(Subject
(Subject
(Subject
#805)
#896)
+2265)
+2269)
In addition, the incidence of congenital hypoplasia of the middle phalanxofthefifth finger was
determined from inspection of the roentgenograms
of the left hand. The incidence in relation to various exposure categories wasas follows:
Incidence
Exposed, Rongelap
Nonexposed with exposed parents
Nonexposed, Rongelap
2/33
0/4
5/53
Utirik (low exposure)
5/51
Nonexposed, Majuro
0/14
Age, yt
<4
Exposed
Nonexposed with
exposed parents
Nonexposed, Rongelap
Nonexposed, Majuro
2/20
6/30
4-9
210
Total
5/19
0/15
5/34
5/26
1/6
0/26
1/9
2/20
11/82
2/15
Table 9
Pediatric Dispensary Visits During 1959 Survey
Presenting complaint
Numberof patients
Cough
Back or limb pain
Skin sores
Otitis
Diarrhea
Anorexia
Headache
Worms
Loss of hearing
Laceration
Abdominal!pain
1
Ree ow Ow Uo
and palpable liver over 3 cm in size, were tabu-
a
urements were determined in children. Compari-
sons have been made between the numbers exam-