title: Social environment and longevity in schizophrenia.
abstract: OBJECTIVE
  The role of social support as a predictor of long-term survival among patients with schizophrenia was examined.
  
  
  METHODS
  Social histories were abstracted from the medical records of a cohort of 133 deceased schizophrenic patients admitted for inpatient treatment between 1934 and 1944. Two independent raters assessed the quantity and quality of support available in each patient's social environment.
  
  
  RESULTS
  Cox regression analysis revealed that higher quantity of social support was significantly related to survival time (p<.05) after controlling for marital status and quality of support. The Cox model indicated that a 1-point increase in the support quantity rating was associated with a proportional 25% decrease in the hazard rate.
  
  
  CONCLUSIONS
  The present findings suggest that social environment, specifically the quantity of social support available to the patient, may impact longevity in psychiatric populations.
authors: Department of Psychology, The University of Iowa, Iowa City 52242, USA. alan-christensen@uiowa.edu
authors: A J
authors: AJ
authors: Christensen
authors: R
authors: R
authors: Dornink
authors: S L
authors: SL
authors: Ehlers
authors: S K
authors: SK
authors: Schultz
mesh_terms: D015331:Cohort Studies; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008136:Longevity; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011788:Quality of Life; D012189:Retrospective Studies; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012931:Social Environment; D012944:Social Support