Longitudinal Study of Growth of American-Japanese Children

对1946-1965年出生的美籍日本儿童的身高、体重、胸围和腿长的纵向数据进行了分析。建立了两个数据集：一个是149名儿童的混合对数研究，另一个是88名儿童的纵向研究。与后者，一些参数被设置在生长速度曲线和青春期冲刺的每个孩子和每个measurement.Comparison之间的黑色和白色的日本：在女孩，身高较高的B-Jpn，但在男孩的W-Jpn成为18岁以后更高。体重较轻的W-Jpn在较低年龄组的男女;此后，它成为相反的。胸围。W-Jpn女孩直到9岁都较小，但男孩B-Jpn在所有年龄组中都较大。腿长在B-Jpn的性别都更大，但从W-Jpn的差异缩小或成为17岁或18岁后的倒数。所有年龄段的参数，除了胸围，在女孩中出现早2 - 3年。W-Jpn女孩的青春期爆发非常强烈。高峰年龄依次为腿长、身高、体重、胸围，Am-Jpn儿童与父母组儿童的比较：Am-Jpn儿童的身高生长曲线在低年龄组男女均与Jpn儿童接近，然后B-Jpn与B-Am接近，W-Jpn与W-Am接近。B-Jpn体重曲线与B-Am一致，而W-Jpn与日本一致。对于胸围，Am-Jpn曲线在较低年龄组男女均接近日本人，但前者胸部生长加快并超过后者。Am-Jpn儿童的相对腿长与身高的关系总是小于B-和W-Am儿童。

Longitudinal data on stature, weight, chest circumference, and leg length of American-Japanese children, born between 1946-1965, were analyzed. Two data sets were established : one on 149 children for a mixed-logitudinal study, and the other is on 88 children for a longitudinal study. With the latter, some parameters were set on the growth velocity curve and adolescent spurt of each child and each measurement.Comparison between Black- and White-Japanese : In girls, stature was higher in B-Jpn, but in boys W-Jpn become higher after age 18. Weight was lighter in W-Jpn in lower age groups of both sexes ; thereafter it became the inverse. Chest circumf.was smaller in W-Jpn girls until age 9, but in boys B-Jpn it was greater in all age groups. Leg length was greater in B-Jpn in both sexes, but the difference from W-Jpn diminishes or became the inverse after ages 17 or 18. All ages at the parameters, except chest circumf., appeared 2 to 3 years earlier in girls. Adolescent spurts were very strong in W-Jpn girs. The sequence of peak ages was in order of leg length, stature, weight, chest circumf., and finally menarcheal age in girls in both B- and W-Jpn children.Comparison between Am-Jpn children and parental group children : Am-Jpn statural growth curve was close to that of Jpn children in lower age groups in both sexes ; then, the B-Jpn became close to the B-Am, and the W-Jpn to the W-Am. The B-Jpn weight curve coincided with the B-Am, whereas the W-Jpn coincide with the Japanese. For chest circumf., the Am-Jpn curve approached to the Japanese in both sexes in lower age groups, whereas the former's chest growth accelerated and overtook the latter's. Relative leg length to stature was always less in Am-Jpn children than either B- and W-Am children.A comparison of W-Jpn to British and Swiss children was also executed.