Table 8 Comparison of Stature (1958 Throggig ft) of Children With Retarded Osseous Development With C eir Next Younger Sibs i > ofgh Stature, cm Sex Born ; 1958 1959 1960 1961 Subject (#65) Sib (85) M M 10/2052 9/ 7.54 95.7 95.5 98.8 100.9 102.2 108.0 104.8 112.5 Subject (22) Sib (291) M M 10/23/52 Lf 3/55 103.0 89.8 108.3 97.1 113.6 104.1 119.9 109.9 Subject (23) Sib (83) M M 9/1152 6, 8,54 98.5 97.6 102.2 98.6 106.7 113.0 108.7 117.0 Subject (#65) Sib 3786) F F 12. 4,52 10/17, 54 93.0 90.6 98.4 97.0 102.9 103.5 109 4 107.5 Subject (26) Sib (+84) M M 10/14, 52 3°31 54 100.4 94.2 106.3 98.6 111.8 104.8 116.4 109.7 Subject Table 9 Table 10 Skeletal Ages in 8-Year-Old Children Laboratorv Data (1961) on Children Exposed to Fallout at Ages 12 to 18 Months Skeletal age* Age at Chronological mo Wr 1959 1961 exposure, age in 1961, In In No. Sex 2 3 M M 16 17 8B He 8 M2 4%: 2'%2 6 Ke 3 3 M M F 16 16 20 8 2 3 %2 3 "2 5+ M 12 8 'A2 Tt g S42 65 F 15 8 M2 32 6 3l4 9f] M F ** “* B'\42 8 5%2 53 %2 8 8 hie 962 F ** 8 2 t 66 33 955 980 996 ° F F F ** ** ** 8 2 8 M2 81% 2 8 Ha 8 42 5%2 7%2 t 6'%: t 6 %2 9 Me 10 7 "2 9 8'%2 *Greulich- Pyle standards. **Control. tNo 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 chronological ages than the norms published by Greulich and Pyle. (2) Boys tended to be consistently less matureskeletally than girls at comparable chronologic ages. (3) Exposed children, both boys and Serum calcium, mg “ Serum phosphorus, mg % Protein boundiodine, y, 100 ml 2 3 9.40 9.24 4.61 4.06 8.0 8.8 6 8.36 3.25 10.7 Subject No. 65 83 86 8.56 8.84 9.80 4.34 4.26 4.12 7.1 8.1 12.0 girls, tended to be less mature than control children. (4) When the children were grouped accord- ing to age at exposure, the exposed comparedto the control group of both boys and girls tended to be less mature. Although these trends suggested that the exposed children maybe inferiorin skeletal maturation to unexposed children, the differences did not reach thelevelofstatistical stgnificance. The retardation in skeletal development was most prominentin the group of children exposed to fallout at ages 12 to 18 months. As expected, 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 exposedto fallout at ages 12 to 18 months. The statural measurements for these 5 children from 1958 through 1961 com-