Hoshi K, Yamada H, Tsukikawa S, Sugano T, Endo C, Sato A
Department of Obstetrics and Gynecology, Fukushima Medical College, Fukushima, Japan.
Arch Gynecol Obstet. 1993;253(2):65-9. doi: 10.1007/BF02768731.
The calcaneus bone mineral density of 473 Japanese women was measured by single energy X-ray absorptiometry (SXA) and the vertebrae bone mineral density of 198 Japanese women was measured by dual energy X-ray absorptiometry (DEXA). The calcaneus bone mineral density of Japanese women starts decreasing from age 30, and the rate of decrease accelerates from the age of 50. The vertebrae bone mineral density starts decreasing from the age of 35, and a conspicuous decrease can be seen from the age of 50 as well. Because bone deterioration of Japanese women is thought to start earlier than Caucasian, the necessity of osteoporosis screening before menopause was suggested. A high positive correlation (r = 0.804) between calcaneus bone mineral density and vertebrae bone mineral density was found, and a high degree of precision of SXA was shown.
采用单能X线吸收法（SXA）测量了473名日本女性的跟骨骨密度，采用双能X线吸收法（DEXA）测量了198名日本女性的椎骨骨密度。日本女性的跟骨骨密度从30岁开始下降，50岁起下降速度加快。椎骨骨密度从35岁开始下降，50岁时也可见明显下降。由于认为日本女性的骨质恶化比白种人更早开始，因此建议在绝经前进行骨质疏松症筛查。发现跟骨骨密度与椎骨骨密度之间存在高度正相关（r = 0.804），并显示出SXA的高度精确性。
