title: Predictive factors of length of inpatient treatment in anorexia nervosa.
abstract: OBJECTIVE
  To identify clinical variables influencing the length of stay (LOS) of inpatient treatment for anorexia nervosa (AN).
  
  
  METHODS
  We analyzed structured clinical charts of 300 consecutive hospitalizations for AN in a specialized eating disorder unit. The sample included patients from 12 to 22 years old. Factors related to the patient and events occurring during the stay were investigated as possible predictors of LOS.
  
  
  RESULTS
  Mean LOS was 135 days. The best model of linear regression revealed that the following factors were significantly related to LOS: duration of AN at admission, use of tube feeding during the stay, accomplishment of the therapeutic weight contract and presence of a comorbid disorder.
  
  
  CONCLUSIONS
  The identification of factors influencing duration of stay, both at the outset and during the hospitalization, could help clinicians to optimize and individualize treatments, as well as increase patient and family compliance.
authors.affiliation: Dept. of Psychiatry for Adolescents and Young Adults, Site Institut Mutualiste Montsouris, Université Paris-Descartes, Paris, France.
authors.forename: Luisa
authors.initials: L
authors.lastname: Strik Lievers
authors.forename: Florence
authors.initials: F
authors.lastname: Curt
authors.forename: Jenny
authors.initials: J
authors.lastname: Wallier
authors.forename: Fabienne
authors.initials: F
authors.lastname: Perdereau
authors.forename: Zoé
authors.initials: Z
authors.lastname: Rein
authors.forename: Philippe
authors.initials: P
authors.lastname: Jeammet
authors.forename: Nathalie
authors.initials: N
authors.lastname: Godart
mesh_terms: D000293:Adolescent; D000856:Anorexia Nervosa / Q000453:epidemiology* / Q000628:therapy*; D015992:Body Mass Index; D001835:Body Weight; D005260:Female; D005602:France / Q000453:epidemiology; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data*; D016014:Linear Models; D010349:Patient Compliance / Q000706:statistics & numerical data*; D010358:Patient Participation / Q000706:statistics & numerical data*; D011368:Professional-Family Relations; D011369:Professional-Patient Relations; D011379:Prognosis; D012720:Severity of Illness Index; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult