Dubrova Iu E, Malinina T V, Suskov I I, Pushkina E I
Genetika. 1995 Mar;31(3):415-21.
Variations of four anthropometric traits (body weight, body length, circumference of head, and circumference of chest) were compared in 149 premature and 819 full-term newborns. The average value of every studied trait for premature newborns was much less than that for full-term newborns. In premature boys, the correlation between body weight and length and circumferences of head and chest was substantially decreased. The coefficient of linear correlation between body mass and body weight for premature newborns was higher than that for full-term newborns. This was accounted for by the peculiarities of growth of the fetus during late prenatal development. Premature, boys and girls, in contrast to full-term children, did not differ considerably in the average values of the anthropometric traits studied. Therefore, the differences between newborn boys and girls in weight and size (sexual dimorphism) are formed at the last month of prenatal development.
对149名早产儿和819名足月儿的四项人体测量特征（体重、身长、头围和胸围）的变化进行了比较。早产儿各项研究特征的平均值远低于足月儿。在早产男婴中，体重与身长以及头围和胸围之间的相关性大幅降低。早产儿体重与身体质量的线性相关系数高于足月儿。这是由产前发育后期胎儿生长的特殊性所致。与足月儿相比，早产的男婴和女婴在所研究的人体测量特征平均值上没有显著差异。因此，新生儿男女在体重和体型上的差异（性别二态性）是在产前发育的最后一个月形成的。
