西安市青年学生胸骨长与身长的关系

THE RELATIONSHIP BETWEEN THE STATURE AND THE STERNAL LENGTH IN YOUNG STUDENTS OF HAN NATIONALITY IN XIAN

本文对1980年测量的西安在校汉族青年学生1585名(男863,女722),年龄16-24岁,按年龄性别分组,计算了身长和胸骨长的均值、胸骨长占身长的百分数、身长与胸骨长的比值、身长、胸骨长指数,并提出了由胸骨长推算身长的回归方程。

The stature and the sternal length and their relationship were studied in 1585 young students of the Han Nationality (863 males and 722 females) in Xian in 1980. The age range was 16 to 24. The results are as follows: 1. The stature and sternal length increase with age before the age of 20 in male and of 21-22 in female. The speed of the sternal growth in proportion is faster than that of the stature, and is faster in female than in male. The variation coefficient of the sternal length is greater than that of the stature, and that of the stature in male is greater than in female, but that of the sternum in female is greater than in male. The stature and the sternal length show a significant sexual difference. 2. The sternal length is about 10% of the stature, but this percentage varies with age and sex and is larger in female than in male. The stature-sternal length index increase, with age and is larger in female than in male. However, there is no significant sexual difference except the groups of 16 and 21-22 years old. 3. The correlation eoeffients between the stature and the sternal length indicate a significant degree of correlation. Therefore, the sternal length can be used to estimate the stature of young studente of the Han Nationality in Xian based on the regression equation.