婴幼儿超声骨强度测定结果及影响因素分析

Measurement and correlated factors of bone intensity by means of quantitative ultrasound in infants and children

【目的】了解婴幼儿骨强度现状,探讨影响婴幼儿骨强度的相关因素。【方法】用定量超声仪对1729名婴幼儿进行骨强度测定并进行相关因素问卷调查。【结果】1091名(63.1%)婴儿的骨强度在正常范围,骨强度减低者以轻度为主,影响婴幼儿骨强度的因素为性别、年龄、是否服用维生素D及钙剂、喂养方式、有无佝偻病症状体征。【结论】婴幼儿骨强度大多数在正常范围,临床应重点关注小年龄婴儿,及时适量补充维生素D和钙有利于提高婴幼儿的骨强度水平。

[Objective] Figure out the present condition of bone indensity,explore the related factors that influence the bone intensity of children. [Method] To measure the bone intensity of 1 729 infants and children by means of quantitative ultruasound（QUS ）followed by questionnairs of related factors. [Results] The bones intensity of 1 091 （63.15%） babies were in normal condition and the amount of decrease in some infants was at low level. The main factors contributing to infants＇ bone intensity included sex,age, feed patterns ,intake of Vitamin D. and calcium, and having the ra- chitis symptom or not. [Conclusions] Most infant and children bone intensity are in normal condition,and clinical experts should put their emphasis on infant who are reletively younger. The level of bone intensity could be improved through timely supplement of VitaminD and Calium.