title: Reliability and validity of Chinese version of the Addiction Severity Index among drug users in the community.
abstract: OBJECTIVE
  To assess the reliability and validity of a new Chinese version of the Addiction Severity Index (ASI-C) in drug users in the community.
  
  
  METHODS
  Three hundred and eighty-one drug users in the community in Chengdu, Sichuan province were recruited. They were interviewed with a questionnaire consisting of the ASI-C revised on the basis of the previous Chinese version and 38 were interviewed for the second time at an interval of 7 days to evaluate test-retest reliability.
  
  
  RESULTS
  Cronbach's α coefficients for the internal consistency of the scale varied from 0.49 to 0.86. Test-retest correlation coefficients ranged from 0.50 to 0.93. Criterion validity was found acceptable, as compared with the Symptom Checklist 90 (SCL-90).
  
  
  CONCLUSIONS
  The ASI-C presented acceptable reliability and validity in a sample of drug users in the community.
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China. cdcluowei@126.com
authors.forename: Wei
authors.initials: W
authors.lastname: Luo
authors.forename: Cai Xia
authors.initials: CX
authors.lastname: Guo
authors.forename: De Lin
authors.initials: DL
authors.lastname: Han
authors.forename: Zhi Jun
authors.initials: ZJ
authors.lastname: Li
mesh_terms: D000328:Adult; D016739:Behavior, Addictive / Q000523:psychology*; D002681:China; D003625:Data Collection; D055030:Drug Users / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires