title: [Clinical features and proportion analysis of adult hip fractures at 11 hospitals in Southwest China from 2010 to 2011].
abstract: OBJECTIVE
  To analyze the clinical feature and constituent ratio of adult hip fractures in Southwest China.
  
  
  METHODS
  The data of adult inpatients and outpatients with hip fractures treated between January 2010 and December 2011 in 11 hospitals of the Southwest China were collected and analyzed. The data includes gender, age, age distribution and fracture pattern according to AO classification.
  
  
  RESULTS
  There were a total of 2,833 adult hip fractures, including 1,340 (47.30%) males and 1,493 (52.70%) females, with a male-to-female incidence ratio of 1: 1.11 and a mean age of (66±18) years. The highest frequency of hip fractures was seen in the 71 to 85 years age group (42.18%, 1,195/2,833). There were 844 fractures (29.79%) in the young and middle-aged group (16-<60 years) and 1 898 fractures (70.21%) in the geriatric group (≥60 years). Men had a higher rate than women (men: 577 fractures, 68.4%) in the young and middle-aged group, while women had a higher rate than men (women: 1,226 fractures, 61.64%) in the geriatric group, with a significant difference in the sex distribution between the two groups (χ2=214.001, P<0.01). The proportion of intertrochanteric fracture (type 31-A), femoral neck (type 31-B) and femoral head fracture (type 31-C) was 46.59%, 49.74% and 3.67% respectively. The highest frequency of the sub-type in each fracture type was type 31-A2, type 31-B2 and type 31-C2.
  
  
  CONCLUSIONS
  Women have a higher rate than men in Southwest China. Geriatric patients are more than the young and middle-aged patients. The femoral neck fractures, intertrochanteric fractures and femoral head fractures are in descending orders according to the proportion of the three different hip fractures.
authors.affiliation: Emergency Center of Trauma, Key Laboratory of Orthopaedic Biomechanics of Hebei Province, The Third Hospital to Hebei Medical University, Orthopaedic Research Institution of Hebei Province, Shijiazhuang 050051, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Yin
authors.forename: Jialiang
authors.initials: J
authors.lastname: Guo
authors.forename: Tianhua
authors.initials: T
authors.lastname: Dong
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Haitao
authors.initials: H
authors.lastname: Zhao
authors.forename: Tao
authors.initials: T
authors.lastname: Sun
authors.forename: Ran
authors.initials: R
authors.lastname: Sun
authors.forename: Haili
authors.initials: H
authors.lastname: Wang
authors.forename: Song
authors.initials: S
authors.lastname: Liu
authors.affiliation: Email: yzling_liu@163.com.
authors.forename: Yingze
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Tian
authors.forename: Bing
authors.initials: B
authors.lastname: Qiu
authors.forename: Bin
authors.initials: B
authors.lastname: Zhao
authors.forename: Zhong
authors.initials: Z
authors.lastname: Chen
authors.forename: Yongqing
authors.initials: Y
authors.lastname: Xu
authors.forename: Zuchao
authors.initials: Z
authors.lastname: Gu
authors.forename: Yijian
authors.initials: Y
authors.lastname: Liang
authors.forename: Jianzhong
authors.initials: J
authors.lastname: Xun
authors.forename: Dianming
authors.initials: D
authors.lastname: Jiang
authors.forename: Jinyu
authors.initials: J
authors.lastname: Huang
authors.forename: Zuoming
authors.initials: Z
authors.lastname: Yin
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D005260:Female; D005264:Femoral Fractures; D005265:Femoral Neck Fractures; D005269:Femur; D005270:Femur Head; D005272:Femur Neck; D006620:Hip Fractures / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged