Hip fracture incidence in Japan: estimates of new patients in 2007 and 20-year trends

Abstract

SummaryWe 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.PurposeThe 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.MethodsData 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.ResultsThe 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.ConclusionsDespite 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.

Comparative trends in hospitalizations for osteoporotic fractures and other frequent diseases between 2000 and 2008

“…As confirmed by the present analysis, hip fractures seem on the decline in Swiss women which confirms earlier findings from our group [5] and others [11,12]. This possible reversal of a secular trend is consistent with reports from other countries such as USA [13][14][15], Canada [16,17], Japan [18], Finland [19], and Denmark [20]. Similar observations were made in neighbour countries such as France [21] and Austria [22] but not in Italy [23] and Germany [24,25].…”

Cost-Effectiveness Analysis of Once-Yearly Injection of Zoledronic Acid For The Treatment of Osteoporosis In Japan

“…A national survey of hip fractures estimated new fractures at 148,100 (male, 31,300; female, 116,800) in 2007 and 175,700 (male, 37,600; female, 138,100) in 2012, an increase of about 27,600 in 5 years [4,5]. As the Japanese population ages, the mounting burden caused by the increased incidence of osteoporotic fractures is of grave concern.…”

Fracture hospitalizations between years 2000 and 2007 in Switzerland: a trend analysis

“…Several recent publications have indicated a possible reversal of the secular trend of hip fractures in the USA [5][6][7], Canada [8,9], Japan [10], Finland [11], Denmark [12], France [13], and in the region of Geneva, Switzerland [14,15] but not in Austria [16], Spain [17], or Germany [18,19]. None of these publications reported trends of major osteoporotic fractures other than hip fractures.…”