21 Table 8 Comparison of Stature (1958 Through 1961) of Children With Retarded Osseous Development With That of Their Next Younger Sibs a ee Stature, cm Sex Born 1958 (35) M 10/20/52 95.7 95.5 100.9 Subject (72) Sib (291) M M 10/23/52 1/ 3/55 Subject (#3) Sib (#83) M M Subject Sib (#85) M ae Subject (+65) 1959 1960 1961 98.8 102.2 104.8 103.0 89.8 108.3 97.1 115.6 104.1 119.9 109.9 9/11/52 6/ 8/54 98.5 97.6 102.2 98.6 106.7 113.0 108.7 117.0 9/ 7/54 +86) F F 12/ 4/52 93.0 98.4 102.9 109.4 Subject Sib (26) #84) M M 10/14/52 5/31/54 100.4 94.2 106.3 “98.6 111.8 104.8 116.4 109.7 10/17/54 103.5 107.5 Skeletal Ages in 8-Year-Old Children Laboratory Data (1961) on Children Exposed to Fallout at Ages 12 to 18 Months Sex 2 3 5 66 33 54 65 814 M M M M F M F M 16 17 16 16 20 12 15 ** 8 2 8 Me 8 A2 Ba 8 %2 8 Ve 8 Ke Bly F ** 8 "2 996 97.0 Table 10 Subject No. 980 90.6 Table 9 Ageat exposure, mo 962 F F OF F Chronological age in 1961, yr +e ++ ™ *Greulich-Pyle standards. 8 " Q1% 9 8 %A2 B Aa Skeletal age* In 1959 In 1961 Subject No. Serum calcium, mg % Serum phosphorus, mg % Protein boundiodine, y/100 ml 4%2 2%2 3%: 5 %2 7%2 7 3%: 5% 6 He 3 3 %2 6 %2 92 9 %2 6 8 2 3 6 65 83 86 9.40 9.24 8.36 8.56 8.84 9.80 4.61 4.06 3.25 4.34 4.26 4.12 8.0 8.8 10.7 7.1 8.1 12.0 5 4, t t 6'%2 t Bo 10 7 "2 9 BMA2 **Control. +No film. tional method and the standards published by Greulich and Pyle.*? As shown in Figure 15, the following general trends were noted: (1) Both the exposed and control Marshallese children tended to be less mature skeletally at comparable chronoime | 112.5 Sib 911 955 logical ages than the norms published by Greulich and Pyle. (2) Boys tended to be consistently less matureskeletally than girls at comparable chrono- logic ages. (3) Exposed children, both boys and . . girls, tended to be less mature than control children. (4) When the children were grouped accord- ing to age at exposure, the exposed compared to the control group of both boys andgirls tended to be less mature. Although these trends suggested that the exposed children may be inferior in skele- tal maturation to unexposedchildren, the differences did not reachthelevelof statistical significance. The retardation in skeletal development was most prominentin the group of children exposed to fallout at ages 12 to 18 months. Asexpected, there was a high correlation between retardation in skeletal age and inferiority in statural growth. Of special interest was the group of children now 8 years old who were exposed to fallout at ages 12 to 18 months. The statural measurements for these 5 children from 1958 through 1961 com- jitiaxsenoniracapnamiancatiaymaamnasitt “mee Renn 108.0 SRO ee me A on amg Se creme: er omg, oS ome ne pm ee a FE eae wer EE oT ee WE ee 7