title: [The general survey for chondromalacia of 2,743 Chinese population].
abstract: OBJECTIVE
  To evaluate the distribution of chondromalacia patella in Chinese population.
  
  
  METHODS
  A random cluster sampling survey was performed covering 2,743 subjects varied in age, sex and occupation in 1995.
  
  
  RESULTS
  The prevalence rate is 36.2%. The occurrence in women was higher than that in men (P < 0.01), while in the age group, 30 to 39 years was the highest being 55.8%. The prevalence rate in soldier being 47.5% was the highest among varied occupations.
  
  
  CONCLUSIONS
  Our study is the first survey to be performed in a large number of Chinese population. This investigation may reflect the prevalence rate of chondromalacia patella in China.
authors.affiliation: PUMC Hospital, CAMS and PUMC, Beijing 100730.
authors.forename: K
authors.initials: K
authors.lastname: Guo
authors.forename: Q
authors.initials: Q
authors.lastname: Ye
authors.forename: X
authors.initials: X
authors.lastname: Zeng
authors.forename: J
authors.initials: J
authors.lastname: Lin
authors.forename: Z
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D000328:Adult; D002357:Cartilage Diseases / Q000453:epidemiology*; D002648:Child; D002681:China / Q000453:epidemiology; D016000:Cluster Analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010018:Osteomalacia / Q000453:epidemiology*; D010329:Patella; D015995:Prevalence; D012494:Sampling Studies; D012737:Sex Factors