title: [Epidemiological features of 877 cases with hip fraction].
abstract: OBJECTIVE
  To analyze the epidemiological features of hip fraction, and to improve the intervention program on this disease.
  
  
  METHODS
  To investigate the clinical data of the patients with hip fraction who were treated at local hospitals, from Jan. to Dec., 2012. Information regarding sex, age, site and cause of the fracture was analyzed.
  
  
  RESULTS
  877 cases were treated at the local hospitals; including 516 males (58.84%) and 361 females (41.16%). The overall incidence of hip fraction was 10.0/100 000, with 11.2/100 000 in males and 8.8/100 000 in females. The incidence was higher in males than that in females (χ² = 4.281, P = 0.033). Age distribution of the patients was: 344 cases in age 71-82 (39.22%), 196 cases in age 61-70 (22.35%) and 185 cases in age 51-60 (21.09%). Transcervical fracture appeared more than intertrochanteric fracture of femur (χ² = 21.423, P < 0.001), with males more than females in both fractures on femur (χ² = 12.816, P < 0.001; χ² = 13.773, P < 0.001). The top 3 factors causing hip fractions would contain tumble (64.88%), falling (20.07%) and traffic accident (10.49%).
  
  
  CONCLUSIONS
  Incidence of hip fraction would increase with age with tumble as the major cause to it.
authors.affiliation: Department of Orthopedics, the First Affiliated Hospital of Zhejiang University, Hangzhou 310006, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Orthopedics, the First Affiliated Hospital of Zhejiang University, Hangzhou 310006, China. Email: doclxj@163.com.
authors.forename: Xiangjin
authors.initials: X
authors.lastname: Lin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006620:Hip Fractures / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D055815:Young Adult