高原汉族青少年近节指骨与身高的关系

A STUDY ON THE RELATIONSHIP BETWEEN THE PROXIMAL PHALANXES AND HEIGHT OF THE ADOLESCENTS AT QINGHAI-TIBET PLATEAU

作者对730名居住青藏高原的7－18岁人口进行X光片调查，结果显示：各近节指骨的长度顺序从大到小依次为第三、第四、第二、第五和第一近节指骨。各近节指骨增长与身高增长间呈较高的正相关关系（68．33％r≥0．6，95．83％P＜0．01）。各近节指骨长度／身高指数随年龄呈缓慢上升趋势，其中第三近节指骨指数的总体增长率最小。本文提出了以各近节指骨长度推算身高的回归方程。

The authors have studied the relationship between the proximal phalanges length and height in 730(male 368, female 362)healthy children and adolescents of Han nationality from 7 to 18 years old, they were born and live at Qinghai -Tibet Plateau in 3000-4000 m above sea level. The proximal phalanges were measured on X-ray films.Results show: The third proximal phalanx is the longest in all. There is positive correlativety between phalanses length and height, 68. 33 % r>0. 6, 95. 83% P<0.01. The growth tendency of all proximal phalanges and body height is almost parallel, the growth spurt of them is during 12-15 years old in male,and 11 - 14 years old in female. The indexes on the length of every proximal phalanges to height are up very slowly with age,the growth rate of index of the third proximal phalanx is the slowest in all. The regression cquations on predicting height for adolescents in this region were provided.