title: Relative efficacy of a 4-day versus a 5-day day hospital program.
abstract: OBJECTIVE
  Day hospital treatment has demonstrated effectiveness in the treatment of eating disorders, but no information regarding the required intensity of treatment is currently available. The purpose of this study was to compare the short-term effectiveness of a 4-day versus a 5-day day hospital program.
  
  
  METHODS
  The study followed a sequential cohort design. Four hundred sixty-eight patients attended a 5-day program between 1985 and 1994 and 288 patients attended a 4-day program between 1995 and 2000. Weight, binging, and vomiting frequencies and psychological functioning were assessed at the beginning and at the end of treatment.
  
  
  RESULTS
  The two programs were equally effective in helping underweight patients to gain weight. However, the 5-day program was associated with higher abstinence rates for binging and vomiting and with better psychological functioning at the end of treatment. The 4-day program was more cost-effective when symptom change was considered as a percentage reduction per treatment day.
  
  
  CONCLUSIONS
  Overall, the 5-day program was both more effective and more costly. The relative long-term outcome of the two programs is a critical question and these data are currently being collected.
authors.affiliation: Eating Disorder Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. Marion.olmsted@uhn.on.ca
authors.forename: Marion P
authors.initials: MP
authors.lastname: Olmsted
authors.forename: Allan S
authors.initials: AS
authors.lastname: Kaplan
authors.forename: Wendi
authors.initials: W
authors.lastname: Rockert
mesh_terms: D000293:Adolescent; D000328:Adult; D003362:Cost-Benefit Analysis; D003631:Day Care, Medical / Q000191:economics; D001068:Feeding and Eating Disorders / Q000191:economics / Q000628:therapy*; D005260:Female; D006801:Humans; D007902:Length of Stay; D008875:Middle Aged; D015999:Multivariate Analysis; D009864:Ontario; D011615:Psychotherapy, Group; D016896:Treatment Outcome