摘要
目的 探讨武汉地区婴幼儿骨骼发育的规律。方法 采用双能X线吸收法测定武汉地区8286名0～3岁婴幼儿前臂远端1／3桡尺骨的骨密度（BMD）。结果 0～3岁婴幼儿前臂远端1／3桡尺骨的BMD值随年龄的增长而逐渐增高；婴幼儿前臂远端1／3桡尺骨BMD从1个月（0．1498±0．0119）g／cm^2增加到1岁（0．1640±0．0140）g／cm^2，2岁时增至（0．1724±0．0118）g／cm^2，3岁时增至（0．1779±0．0124）g／cm^2，以1岁内BMD增长最多（P〈0．05）。各年龄段之间BMD差异具有显著性（P〈0．05），但各组不同性别间BMD差异无显著性。结论 婴幼儿期是BMD增加较快的阶段。本研究结果可为建立婴幼儿BMD正常值提供参考，为评价婴幼儿期钙营养状况提供依据。
Objective To explore the development status of bone mineral density （ BMD ） of infants in Wuhan. Methods The BMD of the distal 1/3 forearm of 8 286 infants aged 0-3 years from Wuhan was measured by dual-energy X-ray absorptiometry （DXA）. Results BMD increased with age during childhood. BMD increased from （0. 1498 ± 0. 0119） g/cm^2 at 1-month-old to （0. 1640 ± 0.0140） g/cm^2 at 1-year-old, to （0. 1724 ±0.0118） g/cm^2 at 2-year-old, and to （0. 1779 ±0.0124） g/cm^2 at 3-year-old. and it increased fastest within 1 year old （ P 〈 0.05 ）. Statistically significant differences exhisted among different age intervals （P 〈 0.05 ）, while not between two genders. Conclusions BMD increases fast during infancy. Our results offer information for the establishment of the normal reference of BMD of infants in central China.
出处
《中国临床营养杂志》
2006年第4期231-234,共4页
Chinese Journal of Clinical Nutrition
关键词
婴幼儿
双能X线吸收法
骨密度
infant
dual-energy X-ray absorptiometry
bone mineral density
