Predictors of short- and long-term clinical outcome in schizophrenic psychosis--the Northern Finland 1966 Birth Cohort study

Eur Psychiatry. 2013 Jun;28(5):263-8. doi: 10.1016/j.eurpsy.2011.11.001. Epub 2012 Apr 13.


Objective: Since the outcome in schizophrenia is heterogeneous and often poor, identification of specific predictors of outcome would be useful in clinical practice.

Methods: Subjects with schizophrenic psychoses (n=103) included in the Northern Finland 1966 Birth Cohort (n=12,058), representing the general population, were followed-up for an average of 16.4 years. Predictor and outcome data were collected from the nationwide Finnish Hospital Discharge Register, hospital records and interviews.

Results: Insidious onset of illness predicted a rehospitalization due to psychosis in the 2 years after the initial discharge. Being single, having an early onset, insidious onset, suicidal ideations upon the first admission, a rehospitalization and a high number of treatment days due to psychosis in the early stages of the illness all predicted a poorer clinical outcome in the longer term, after a minimum follow-up of 10 years.

Conclusions: This population-based study indicates that clinical and sociodemographic factors around the onset of illness have significance for the long-term outcome in schizophrenia. These prognostic factors should be taken into account in clinical practice.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Age of Onset
  • Antipsychotic Agents / therapeutic use
  • Cohort Studies
  • Female
  • Finland / epidemiology
  • Hospitalization
  • Humans
  • Male
  • Middle Aged
  • Psychotic Disorders / drug therapy
  • Psychotic Disorders / epidemiology*
  • Psychotic Disorders / psychology
  • Schizophrenia / drug therapy
  • Schizophrenia / epidemiology*
  • Schizophrenic Psychology*
  • Treatment Outcome


  • Antipsychotic Agents