title: Relationship between perceived improvement and treatment satisfaction among clients of a methadone maintenance program.
abstract: OBJECTIVE
  The objective of this study was to evaluate the relationship between perceived improvement and client satisfaction in a methadone maintenance treatment population. A secondary objective was to evaluate the psychometric properties of the Perceived Improvement Questionnaire (PIQ).
  
  
  METHODS
  Two hundred and thirty-two clients of a methadone maintenance treatment program filled out self-reported questionnaires and two open-ended questions measuring their perceived improvement and their level of satisfaction with the services received.
  
  
  RESULTS
  Correlation analyses revealed a significant relationship between participants' perceived improvement and their level of satisfaction with services received throughout their treatment. A factor analysis identified 3 sub-scales of the PIQ: emotional health, social relations and physical health. The PIQ's internal consistency and construct validity supported the adequacy of the metric properties of the questionnaire.
  
  
  CONCLUSIONS
  Further research is needed to investigate the link between clients' input and treatment satisfaction in different substance abuse populations. The scale's potential to provide valuable information such as clinical assessment and program evaluation should be explored.
authors.affiliation: Douglas University Institute, 6875 Boulevard LaSalle, Montréal, Québec, Canada. michel.perreault@douglas.mcgill.ca
authors.forename: Michel
authors.initials: M
authors.lastname: Perreault
authors.forename: Noé Djawn
authors.initials: ND
authors.lastname: White
authors.forename: Eric
authors.initials: E
authors.lastname: Fabrès
authors.forename: Michel
authors.initials: M
authors.lastname: Landry
authors.forename: Annélie S
authors.initials: AS
authors.lastname: Anestin
authors.forename: Daniel
authors.initials: D
authors.lastname: Rabouin
mesh_terms: D000328:Adult; D000553:Ambulatory Care; D005260:Female; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D008875:Middle Aged; D017060:Patient Satisfaction; D015397:Program Evaluation / Q000379:methods*; D011795:Surveys and Questionnaires; D016896:Treatment Outcome
chemical_list: D008691:Methadone