title: [An evaluation method for analysis of correlation between traditional Chinese medicine syndrome and seasonal changes of weather based on information entropy].
abstract: OBJECTIVE
  A method based on dubious condition of information entropy was introduced and applied to discuss a complexity problem in the analysis of correlation between traditional Chinese medicine (TCM) syndrome and season.
  
  
  METHODS
  Eight hundred and seventy one cases of chronic virus hepatitis B (hepatitis B) with TCM clinical data were analyzed by information entropy method.
  
  
  RESULTS
  It was found that hepatitis B with Yin deficiency of liver and kidney happened more often in summer than in other seasons.
  
  
  CONCLUSIONS
  It is inferred that the difference of seasons may influence the variation of TCM syndromes.
authors.affiliation: Department of System Science and Technology, University of Shanghai for Science and Technology, Shanghai 200093, China.
authors.forename: Ji-jia
authors.initials: JJ
authors.lastname: Sun
authors.forename: Jian
authors.initials: J
authors.lastname: Jiang
authors.forename: Lei-lei
authors.initials: LL
authors.lastname: Zhu
authors.forename: Yue-qiu
authors.initials: YQ
authors.lastname: Gao
authors.forename: Guang-le
authors.initials: GL
authors.lastname: Yan
authors.forename: Shi-bing
authors.initials: SB
authors.lastname: Su
mesh_terms: D020000:Decision Support Systems, Clinical; D003937:Diagnosis, Differential; D019277:Entropy; D019694:Hepatitis B, Chronic / Q000175:diagnosis*; D006801:Humans; D008516:Medicine, Chinese Traditional / Q000379:methods*; D012621:Seasons; D014887:Weather; D016710:Yin Deficiency / Q000175:diagnosis*