title: Prevalence and risk factors of lumbar spondylolisthesis in elderly Chinese men and women.
abstract: OBJECTIVE
  A screening survey for osteoporotic fractures in men and women in Hong Kong represents the first large-scale prospective population-based study on bone health in elderly (≥65 years) Chinese men and women. This study aims to identify the prevalence and potential risk factors of lumbar spondylolisthesis in these subjects.
  
  
  METHODS
  The lateral lumbar radiographs of 1,994 male and 1,996 female patients were analysed using the Meyerding classification.
  
  
  RESULTS
  Amongst the men, 380 (19.1%) had at least one spondylolisthesis and 43 (11.3%) had slips at two or more levels; 283 had anterolisthesis, 85 had retrolisthesis, whereas 12 subjects had both anterolisthesis and retrolisthesis. Amongst the women, 499 (25.0%) had at least one spondylolisthesis and 69 (13.8%) had slips at two or more levels; 459 had anterolisthesis, 34 had retrolisthesis, whereas 6 subjects had both anterolisthesis and retrolisthesis. Advanced age, short height, higher body mass index (BMI), higher bone mineral density (BMD) and degenerative arthritis are associated with spondylolisthesis. Lower Physical Activity Scale for the Elderly (PASE) score was associated with spondylolisthesis in men; higher body weight, angina and lower grip strength were associated with spondylolisthesis in women.
  
  
  CONCLUSIONS
  The male/female ratio of lumbar spondylolisthesis prevalence was 1:1.3 in elderly Chinese. Men are more likely to have retrolisthesis.
  
  
  CONCLUSIONS
  • The prevalence of spondylolisthesis is 19.1% in elderly Chinese men. • The prevalence of spondylolisthesis is 25.0% in elderly Chinese women. • Men are more likely to have retrolisthesis. • Anterolisthesis is most commonly seen at the L4/L5 level. • Retrolisthesis is most commonly seen at the L3/L4 level.
authors.affiliation: Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China.
authors.forename: Lai-Chang
authors.initials: LC
authors.lastname: He
authors.forename: Yi-Xiang J
authors.initials: YX
authors.lastname: Wang
authors.forename: Jing-Shan
authors.initials: JS
authors.lastname: Gong
authors.forename: James F
authors.initials: JF
authors.lastname: Griffith
authors.forename: Xian-Jun
authors.initials: XJ
authors.lastname: Zeng
authors.forename: Anthony W L
authors.initials: AW
authors.lastname: Kwok
authors.forename: Jason C S
authors.initials: JC
authors.lastname: Leung
authors.forename: Timothy
authors.initials: T
authors.lastname: Kwok
authors.forename: Anil T
authors.initials: AT
authors.lastname: Ahuja
authors.forename: Ping Chung
authors.initials: PC
authors.lastname: Leung
mesh_terms: D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D008297:Male; D015995:Prevalence; D011446:Prospective Studies; D011859:Radiography; D012307:Risk Factors; D063507:Sexism; D013168:Spondylolisthesis / Q000000981:diagnostic imaging / Q000453:epidemiology*