title: [Characteristics of traditional Chinese medicine syndromes and their element distributions in sub-health status: a modern literature review].
abstract: OBJECTIVE
  To probe into the characteristics of traditional Chinese medicine syndromes and their element distributions in sub-health status.
  
  
  METHODS
  Literatures on sub-health in past 20 years were collected, and a data bank was set up by using EpiData 2.0. The frequencies of syndromes and their elements were analyzed using SPSS 12.0.
  
  
  RESULTS
  Out of the 50 syndromes obtained from the standardization of syndrome nomenclature, and the top three were stagnation of liver-qi, deficiency of both heart and spleen, and deficiency of liver-yin and kidney-yin. Spleen, liver and kidney were the top three of all the 14 disease locations. Qi-deficiency, qi-stagnation and damp pathogen were the top three pathogenicity types.
  
  
  CONCLUSIONS
  Although the traditional Chinese medicine syndromes in sub-health status are scattered in the distribution, the main syndromes take up a leading proportion and their elements are concise and concentrated in distribution. Therefore, it is necessary to make a standard study on traditional Chinese medicine syndromes in sub-health status from syndrome elements.
authors.affiliation: Preclinical School, Beijing University of Chinese Medicine, Beijing 100029, China.
authors.forename: Ya-jing
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Tian-fang
authors.initials: TF
authors.lastname: Wang
authors.forename: Xiao-lin
authors.initials: XL
authors.lastname: Xue
authors.forename: Jia-jia
authors.initials: JJ
authors.lastname: Wang
authors.forename: Guan-ru
authors.initials: GR
authors.lastname: Li
authors.forename: Ping
authors.initials: P
authors.lastname: Han
mesh_terms: D003937:Diagnosis, Differential; D006304:Health Status; D006801:Humans; D008516:Medicine, Chinese Traditional / Q000379:methods*; D013577:Syndrome