title: Acute treatment response and its predictors in patients with first-episode psychosis in Iran.
abstract: OBJECTIVE
  The aim of this paper was to investigate the acute treatment response and its predictors in a sample of patients with first-episode psychosis admitted to a psychiatric hospital in Iran.
  
  
  METHODS
  A total of 163 patients with first-episode psychosis were treated with antipsychotics and other medications as prescribed by their treating psychiatrists. Sociodemographic and premorbid data at baseline and clinical data at both baseline and discharge (6+/-1 weeks after admission) were collected.
  
  
  RESULTS
  Patients showed a response rate of 71.4% for negative symptoms, 91.5% for positive symptoms and 67.5% for functioning. Those having a positive family history and less severe negative symptoms at baseline were less likely to respond in terms of negative symptoms. Higher premorbid and lower baseline functioning as well as acute onset were associated with the treatment response.
  
  
  CONCLUSIONS
  Acute treatment response of first-episode psychosis in a clinical sample of a developing country seems to be higher than that of developed countries. However, predictors of response are comparable.
authors.affiliation: Department of Psychiatry, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran. tabatabaee@razi.tums.ac.ir
authors.forename: Maryam
authors.initials: M
authors.lastname: Tabatabaee
authors.forename: Vandad
authors.initials: V
authors.lastname: Sharifi
authors.forename: Javad
authors.initials: J
authors.lastname: Alaghband-rad
authors.forename: Homayoun
authors.initials: H
authors.lastname: Amini
authors.forename: Mehran
authors.initials: M
authors.lastname: Boroumand
authors.forename: Abbas
authors.initials: A
authors.lastname: Omid
authors.forename: Arshia
authors.initials: A
authors.lastname: Seddigh
mesh_terms: D000208:Acute Disease; D000328:Adult; D001714:Bipolar Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D003710:Demography; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008297:Male; D008605:Mental Health Services / Q000706:statistics & numerical data*; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D011618:Psychotic Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy*; D012559:Schizophrenia / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D016896:Treatment Outcome