Bone Abstracts

Introduction: The purposes of this study were to evaluate the trends in the incidence and mortality of hip fracture between 2008 and 2012, and predict the number of hip fractures in Korea up to 2025, using nationwide claims data.

Methods: Nationwide claims data managed by the National Health Insurance Service (NHIS) was used to identify patients with hip fracture. All new visits or admissions to medical institutes for hip fracture aged 50 years or more between 2008 and 2012 were included. The incidence and mortality of hip fracture were calculated using Poisson distribution from 2008 to 2012. Projections of the number of hip fractures were conducted using Poisson distribution on the historical incidence with population projection from 2016 to 2025 in Korea.

Results: The incidence of hip fractures (per 100,000) increased by 14.1% over the 5 years of the study. The incidence of hip fractures increased 15.8% in women and 10.9% in men. A steep rise and shift in the incidence of hip fracture was distributed in the older age group from 2008 to 2012. The cumulative mortality rates at first year after hip fractures were 17.2% (3575/20,849) in 2008 and 16.0% (4547/28,426) in 2012. Overall average SMRs of hip fracture was the higher in men (11.93) than women (11.22). The SMRs were observed to be higher than those of general population in all age periods. From 2016, the total number of hip fractures are estimated to have an overall increase of 1.4-fold for the 10 year projection in 2025.

Conclusions: The incidence of hip fracture still continue to increase and the mortality after hip fracture is also high even though the mortality has decreased as time goes by. Nationwide strategies should include attention to prevent the burden of hip fracture and reduce the future socioeconomic burden.