title: Survival analysis and readmission in mood disorder.
abstract: BACKGROUND
  This is an exploratory study of readmission in mood disorder.
  
  
  METHODS
  The study is naturalistic and employs survival analysis. We identified 821 individuals with ICD-9 diagnoses, drawn from the Tasmanian Mental Health Register.
  
  
  RESULTS
  No demographic variables influence the time to readmission. Two groups emerge: those with affective psychoses, and those with neurotic depression, brief depressive reaction and depressive disorders not elsewhere classified. The former group demonstrated shorter times to readmission than the latter. There was no support for a unipolar-bipolar distinction.
  
  
  CONCLUSIONS
  Affective psychoses have a less favourable outcome than expected. There was support for an endogenous-neurotic distinction.
authors.affiliation: Department of Psychiatry, University of Tasmania, Hobart, Australia.
authors.forename: S
authors.initials: S
authors.lastname: Pridmore
authors.forename: H
authors.initials: H
authors.lastname: Hornsby
authors.forename: D
authors.initials: D
authors.lastname: Hay
authors.forename: I
authors.initials: I
authors.lastname: Jones
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D019964:Mood Disorders / Q000175:diagnosis* / Q000534:rehabilitation*; D010343:Patient Admission; D011379:Prognosis; D011569:Psychiatric Status Rating Scales; D016019:Survival Analysis