Predictability of rehospitalisation over 5 years for schizophrenia, bipolar disorder and depression

Aust N Z J Psychiatry. 1998 Apr;32(2):281-6. doi: 10.3109/00048679809062740.

Abstract

Objective: The aim of this study was to examine the rate of rehospitalisation for schizophrenia, bipolar disorder and depression over a 5-year period in Tasmania, and to identify predictors of the number and duration of readmissions.

Method: The Tasmanian Mental Health Register was used to study the 5-year pattern of rehospitalisation for all patients admitted to a Tasmanian public psychiatric inpatient facility with a primary diagnosis of schizophrenia, bipolar disorder or depression, in 1983 or 1984.

Results: Seventy-one percent of patients receiving a diagnosis of schizophrenia were readmitted in the 5-year period, compared to 59% for bipolar disorder and 48% for depression. For all three diagnoses, the number of prior admissions was a predictor of the number of readmissions and the total number of days spent in hospital in the follow-up period. Age and sex also had significant effects, which varied across diagnostic groups.

Conclusions: A substantial proportion of patients hospitalised for schizophrenia, bipolar disorder or schizophrenia were rehospitalised during the next 5 years. Patients with more previous admissions had more readmissions than those with fewer previous admissions.

MeSH terms

  • Bipolar Disorder / diagnosis
  • Bipolar Disorder / epidemiology*
  • Bipolar Disorder / therapy
  • Comorbidity
  • Depressive Disorder / diagnosis
  • Depressive Disorder / epidemiology*
  • Depressive Disorder / therapy
  • Female
  • Hospitals, Psychiatric / statistics & numerical data
  • Hospitals, Public / statistics & numerical data
  • Humans
  • Length of Stay / statistics & numerical data
  • Male
  • Patient Readmission / statistics & numerical data*
  • Risk Factors
  • Schizophrenia / diagnosis
  • Schizophrenia / epidemiology*
  • Schizophrenia / therapy
  • Tasmania / epidemiology