title: Factor structure and concurrent construct validity of ICG among bereaved substance users.
abstract: BACKGROUND
  It is important to understand the repercussions of Complicated Grief (CG) symptoms in addictions. There are no studies to date which have examined the psychometric properties of any test of bereavement among people with substance use disorder (SUD). Participants with SUD can have a different experience of bereavement from other people and therefore could respond differently to the usual instruments which assess CG symptomatology.
  
  
  METHODS
  This study aims to establish the psychometric properties of the Spanish adaption of the Inventory of Complicated Grief (ICG) in a sample of 196 bereaved drug dependent patients.
  
  
  RESULTS
  Results indicate that the internal consistency of the Spanish ICG was high (Cronbach&#8217;s alpha=0.922). The Spanish IDC shows good psychometric properties and it is a useful tool to discriminate adaptive reactions to symptomatology of complicated grief. Four factors were identified: discomfort, non-acceptance, loneliness-isolation and presence of deceased. Those factors showed a good internal reliability (minimum Cronbach&#8217;s alpha=0.78).
  
  
  CONCLUSIONS
  The results of the current study confirm the multidimensionality of CG&#8217;s symptomatology construct.
authors.affiliation: Public Drug Centre. Cas Teresa Ferrer, Girona. Cas Ripoll. Institut d&#8217;Assistència Sanitària (IAS) Department of Psychology. University of Girona.
authors.forename: Laura
authors.initials: L
authors.lastname: Masferrer
authors.affiliation: (Girona Biomedical Research Institute) IDIBGI - Research Unit - Institut d&#8217;Assistència Sanitària (IAS).
authors.forename: Josep
authors.initials: J
authors.lastname: Garre-Olmo
authors.affiliation: Department of Psychology. University of Girona.
authors.forename: Bea
authors.initials: B
authors.lastname: Caparrós
mesh_terms: D003430:Cross-Sectional Studies; D005260:Female; D006117:Grief; D006801:Humans; D008297:Male; D008875:Middle Aged; D000073222:Patient Health Questionnaire; D011594:Psychometrics; D015203:Reproducibility of Results; D019966:Substance-Related Disorders / Q000209:etiology* / Q000523:psychology*