中国女性前臂骨密度正常值与原发性骨质疏松症发生率的研究

本研究利用丹麦Ｐｒｏｎｏｓｃｏ公司生产的数码式Ｘ线片骨密度扫描仪，摄取非优势手及前臂中远１／３处Ｘ光片，测量了中国女性３５３人，年龄２０￣７９岁，骨密度、峰值，年龄组为３０￣３９岁，（ＢＭＤ＝０．５５６ ＳＤ＝０．０２７）。本实验采用降低骨峰值２．０标准差诊断为骨质疏松症，与以往使用其他仪器测定结果相似，丹麦数码式Ｘ线片扫描仪价格低廉，使用方便，准确性高，适用于发展中国家。

Normal values of forearm bone BMD and incidence of primary osteoporosis in Chinese women

In this study we obtained the normative reference data of forearm BMD in Chinese women using a new computerised radiogrammetric analysis system (Pronosco X\|posure system),which generates a BMD estimate (DXR\|BMD) through scanning of a plain radiograph of the hand and forearm.DXR\|BMD data were obtained in 353 normal Chinese women aged 20-79 years.The peak BMD was found in women between 30\|39 years of age (estimated peak BMD=0 5569,SD=0 027,occurring at age 30-39).The incidence of osteoporosis diagnosed on the basis of pcak BMD minus 2.0 SD in this study population was similar to the prevalence of primary osteoporosis in Chinese women reported by others using osteodensitometry.We conclude that the X\|posure system can provide simple,accurate and inexpensive assessment of bone mineral status,making it valuable in the diagnosis of osteoporosis,especially in developing countries.