title: Five-year relative survival of patients with osteoporotic hip fracture.
abstract: BACKGROUND
  Osteoporotic hip fracture is known to be associated with excess mortality. The 1-year mortality rate after hip fracture is known to reach up to ∼20%, similar to that of cancer. However, there was no study that compared cancer survival. Recently, relative survival has been used to present a prognosis for a particular disease.
  
  
  OBJECTIVE
  The purpose of this study was to compare the 5-year relative survival after osteoporotic hip fracture with those of general population and cancer patients.
  
  
  METHODS
  We retrospectively reviewed the medical records of 727 patients who were treated for osteoporotic hip fractures from 2003 to 2009.
  
  
  METHODS
  Intervention was hip fracture surgery.
  
  
  METHODS
  Five-year relative survival after fracture was estimated and was compared with survival in the general population and in cancer patients. Relative survival of 100% would reflect no excess mortality associated with the hip fracture compared with the general population.
  
  
  RESULTS
  Cumulative mortality was 32.3% at 5 years, and 5-year absolute survival rate was 63.0% (95% confidence interval, 59.0%-66.9%). Five-year relative survival of hip fracture was 93.9% (95% confidence interval 87.5%-99.7%), which was comparable with those of thyroid or breast cancer (99.8% and 91.0%, respectively).
  
  
  CONCLUSIONS
  Our results showed that 5-year relative survival after osteoporotic hip fracture was below those of the general populations and was comparable with some cancers such as thyroid and breast cancer. Therefore, osteoporotic hip fracture should not be overlooked.
authors.affiliation: Department of Orthopaedic Surgery (Y.-K.L., K.-H.K.), Seoul National University Bundang Hospital, Gyeonggi-do 463-707, South Korea; Department of Internal Medicine (Y.-J.L.), Center for Thyroid Cancer, National Cancer Center, Gyeonggi-do, 410-769, S Korea; and Department of Orthopaedic Surgery (Y.-C.H.), Chung-Ang University College of Medicine, Seoul 156-755, South Korea.
authors.forename: Young-Kyun
authors.initials: YK
authors.lastname: Lee
authors.forename: You-Jin
authors.initials: YJ
authors.lastname: Lee
authors.forename: Yong-Chan
authors.initials: YC
authors.lastname: Ha
authors.forename: Kyung-Hoi
authors.initials: KH
authors.lastname: Koo
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002423:Cause of Death; D005260:Female; D006620:Hip Fractures / Q000401:mortality* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000401:mortality; D058866:Osteoporotic Fractures / Q000401:mortality* / Q000601:surgery; D011183:Postoperative Complications / Q000401:mortality; D012189:Retrospective Studies; D016019:Survival Analysis