市区与郊区青少年骨密度变化的比较  

Measurement of bone mineral density of adolescent boys and girls in the urban areas and the suburbs of Beijing

作　　者：刘加昌[1] 欧阳巧洪[1] 张瑾[1] 刘青[1] 滕小梅[1] 

机构地区：[1]解放军第304医院核医学科,北京100037

出　　处：《感染．炎症．修复》2003年第2期100-102,共3页Infection Inflammation Repair

摘　　要：目的:了解市区与郊区12～14岁男女骨密度(BMD)的变化规律。方法:利用双能X线骨密度仪对613例健康中学生男女行全身扫描。其中,市区307人,郊区306人;男生296例,女生317例。结果:市区12～14岁男女孩的身高、体重及全身总BMD和总骨矿含量(BMC)等分别都高于郊区同龄男女。市区男女身高比郊区男女高2～5cm,市区男女的体重比郊区男女重2～10kg,市区男女孩的BMD和BMC明显高于郊区男女(P<0.01)。女孩BMD值高于同龄男孩,且女孩BMD年增长速度快于同龄男孩,女孩BMD年增长2.7%～8.1%,男孩BMD年增长2.1%～2.5%。结论:该年龄段(12～14岁)女孩BMD高于同龄男孩,郊区男女生长发育比市区同龄男女晚约1～2年。To observe the changes in bone mineral density (BMD) of boys and girls from 12 to14 years old in the urban areas and the suburbs of Beijing. Methods: 613 middle school students were divided into the city group and the suburban group, and whole body scanning was performed with dual energy X—ray bone densi tometer. Results:The boys and girls in the urban areas were 2-5 cm higher and 2-10 kg heavier in body weight than those in the suburbs of the same age. The values of BMD and BMC of the boys and girls in the urban areas were significantly higher than those in the suburbs (P<0.01). As compared with the boys of the same age, the girls had higher value and annual growth rate of BMD, being 2.7 %-8.1% in girls and 2.1%-2.5% in boys, and the difference was of statistical significance. Conclusions:BMD of girls were higher than that of boys of the same age from 12 to14 years old. Compared with those in urban areas, the growth and development of boys or girls in the suburbs were 1-2 years delayed.

关 键 词：青春期 骨密度 

分 类 号：R[医药卫生]