Orimo Hajime, Yaegashi Yumi, Onoda Toshiyuki, Fukushima Yasumasa, Hosoi Takayuki, Sakata Kiyomi
Arch Osteoporos. 2009 Dec;4(1-2):71-77. doi: 10.1007/s11657-009-0031-y. Epub 2009 Oct 2.
We estimated the number of hip fracture patients in 2007 in Japan and investigated the trends in incidence during a 20-year period from 1987 to 2007. Despite the increasing number of new patients, the incidence of hip fracture in some age groups showed the possibility of decline. PURPOSE: The aims of this study were to estimate the number of hip fracture patients in 2007, to investigate the trends in incidence during a 20-year period from 1987 to 2007, and to show the regional differences in Japan. METHODS: Data were collected through a nationwide survey based on hospitals by the mailing method. Hip fracture incidences by sex and age and standardized incidence ratios by region were calculated. RESULTS: The estimated numbers of new hip fracture patients in 2007 were 148,100 in total (95% CI, 144,000-152,200), 31,300 (30,500-32,100) for men, and 116,800 (113,900-119,700) for women. The incidence rate in men aged 60-69 years and that in women aged 60-79 years were the lowest in the 15-year period from 1992 to 2007. The incidence was higher in western areas of Japan than in eastern areas in both men and women. CONCLUSIONS: Despite the increasing number of new patients, the incidence of hip fracture in some age groups for both men and women showed the possibility of decline. The exact reasons for this are unknown, but drug therapy for osteoporosis and fall prevention programs might have influenced the results. Some nutrient intakes might explain the regional differences not only in Japan but also in some other countries.
我们估算了2007年日本髋部骨折患者的数量，并调查了1987年至2007年这20年间的发病率趋势。尽管新患者数量不断增加，但某些年龄组的髋部骨折发病率显示出下降的可能性。目的：本研究的目的是估算2007年髋部骨折患者的数量，调查1987年至2007年这20年间的发病率趋势，并展示日本的地区差异。方法：通过邮寄方式对全国医院进行调查收集数据。计算了按性别和年龄划分的髋部骨折发病率以及按地区划分的标准化发病率。结果：2007年新髋部骨折患者的估算总数为148,100例（95%可信区间，144,000 - 152,200例），男性为31,300例（30,500 - 32,100例），女性为116,800例（113,900 - 119,700例）。在1992年至2007年的15年期间，60 - 69岁男性和60 - 79岁女性的发病率最低。日本西部地区男性和女性的发病率均高于东部地区。结论：尽管新患者数量不断增加，但男性和女性某些年龄组的髋部骨折发病率显示出下降的可能性。确切原因尚不清楚，但骨质疏松症的药物治疗和预防跌倒计划可能影响了结果。一些营养素摄入量可能不仅解释了日本的地区差异，也解释了其他一些国家的地区差异。
