35 Table 18 Sr* in Marshallese 24-hr Urine Samples, April 1962 No.of Age, subSr®*, Group yr jects _ pC/! Exposed Male 1-15 P15 Female 1-15 >15 Total 1-15 >15 Nonexposed Male 1-1§ >15 Female 1-15 >iS Total 1-15 PIS Total All All 1-15 >1S 3 7 2 8 5 18 1 Ca, mg/l 9.33%1.70" 52414 9.06%1.11 175426 9.60%2.30 25411 15.89%2.50 104412 9Q44e1.18 4iell 12.70+1.66 137416 189418 53% § 426+%96 165226 284+66 28.6020 140+ 0 204% 0 7 1 il 8.8842.46 —10.24%3.07 28.6020 9.754%2.07 6 12.6343.34 4 26 Sr®, pC/gCa 1.45%1.30 113420 129411 —_—— 100449 140+ 0 11031 6614 — 14328 2042 0 42% 9 270+55 126416 115221 ll4dx14 *Standard error of estimate. Routine physical examinations of adults revealed that the slight differences in incidence of various diseases in the exposed group compared with the control group could likely be explained by the somewhat greater number of older people in the exposed group. An ophthalmological survey revealed a slight increase in the incidence of pterygia and pingueculae in the exposed group. As reported previ- ously, this may be related to fallout exposure of the eyes. There were also several cases of corneal pigmentation which may have been related to fallout exposure. There was no evidence in the exposed people of retinal burns which might have resulted from observation of the fireball at the time of the accident in 1954. A cancer detection survey was done which included, in addition to thorough ~nysical examinations, pelvic examinations in mature women with Papanicolaou staining of smears, rectal examinations in adults, and hematological studies for leukemia detection, which included the determination of alkaline phosphatase levels of leukocytes and basophil counts of 4000 white cells. No cases of malignancy or leukemia were detected. Pediatric examinations revealed no marked differences in abnormalities between exposed and unexposed children and no diseases that could be related to radiation effects. Growth and development studies, as previously reported, showed that: the boys exposed at an early age (<6 yr and particularly 12 to 18 months) were slightly shorter in stature and weighedslightly less than the unexposed cr «ren of comparable age. No such differences were noted in the exposed compared with the unexposed girls. Skeletal age determined by wrist roentgenography showed that both the boys and the girls in the exposed group were slightly retarded, the boys showing the greater deficit. The greatest retardation was noted in 4 boys who had been 16 to 17 months old at exposure. Male children (but not female) born of exposed parents (after the fallout) tended to be smaller in stature at all ages than children of unexposed parents. Table 19 Se® Analyses of Bone and Crab Samples Original net wt., g Bone Rib Vertebra Crab Ash g Sr*, dis/min % 1.48 2.60 878 111 1165 209 902 705 136 99 Per total sample 16.4+0.6* 33.8+0.0 12.7 15.1 17.9 14.0 Per g ash 11.120.4 13.0+0.3 1462 +5 850 +4 Ca, % inash 36.6 36.0 $0.0 964 x+4 40.0 1518 +6 49.6 “The error term accompanying each result is the Poisson error of counting. 34.4 Sr®, pC/gCa 13.7+0.5 16.3-20.4 1317 «4 1113 +5 1086 +4 1378 +5

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