i9 urements were determined in children. Compari- Hypoplasia of the middle phalanx has been reported as occurring in the normal population in sons have been macebetween the numbers exam- incidences ranging from 0.3% to 3.2%. The anomaly was found to have considerably greater frequency(25%) in Japanese children.** The over-all incidence in the Marshallese children was 0.77%. 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 1939, Pediatric dispensary work was carried out preceding and following the regular examinations. In 14 were babies born in the interval between the two examinations. , all. 36 children were treated. The presenting com- The age distribution of children examined in 1959 was as follows: plaints are shown in Table 9. Age, yr Exposed Nonexposed with exposed parents Nonexposed, Rongelap iNonexposed, Majuro 20 30 Uurik ? +to9 210 Total 19 13 34 Table 7 26 9 20 82 i) Incidence of Chronic [mpetigo (Active) 26 6 ? ? 60 a <4 The occurrence of various medical conditions1s summarized in Table 6. There seemed to be no concentration of clinical abnormalities in the ex- Exposed Nonexposed with exposed parents Nonexposed, Rongelap posed groups. Since the incidence of manyofthese the children at the time of examination, two of the <t Exposed Nonexposed with exposed parents 2/33 O/ +4 Nonexposed, Majuro O/ 14 Nonexposed, Rongelap Uurik (low exposure) 5/53 3/51 T/NQ 3/15 10/3+ 7/26 5/26 7/20 25/82 0/6 0/9 0/45 49 210 Total 5/19 0/15 5/34 5/26 0/26 11/82 1/6 1/9 Table 9 Pediatric Dispensary Visits During 1959 Survey Presenting complaint Cough o . x Exposed, Rongelap Nonexposed with exposed parents 6/30 Nonexposed, Majuro of the left hand. The incidence in relation to var-. Incidence 2/20 Nonexposed, Rongelap 1 (Stibject +805) lous exposure categories was as follows: Total Age, yr ! (Subject #896) | (Subject +2265) 1 (Subject £2269) In addition, the incidence of congenital hypoplasia of the middle phalanx ofthe fifth finger was determined from inspection of the roentgenograms 3210 Incidence of Palpable Liver (Over 3 cm) congenital anomalies were recorded: Pectus excavatum Bifid uvula 4-9 Table 8 most frequent findings, active chronic impetigo and palpable liver over 3 cm in size, were tabulated separately for several different age groups (Tables 7 and 8). The ages were based on thebest available birth date estimations. A tendency for these findings to occur more frequently in the younger children was noted. The incidences, however, did not appear to be related to exposure to radiation. During the physical examinations, the following Patent ductus arteriosus (repaired) 7/20 13/30 Nonexposed, Majuro conditions could have been related to the ages of Deformity of the hip Age, yr Back or limb pain Skin sores Onts Diarrhea Anorexia Headache Worms Loss of hearing Laceration Abdominal pain Numberof patients I he eo <4 2/20 2/15