title: [Assessment of types and incidence of aggression among patients admitted due to aggressive behaviours].
abstract: OBJECTIVE
  The aim of the study was the assessment of types and incidence of aggressive behaviours amongst psychiatric patients with violent acts marked in the referrals.
  
  
  METHODS
  107 patients with aggressive or autoaggressive behaviours admitted to the General Hospital of Mental Disorders in Lubiaz and 37 controls without aggressive acts in referrals were examined. Two-way data analysis of the qualified individuals was performed. Firstly, the group was divided into 3 subgroups depending on marked or not marked aggressive behaviours in referrals as well as violent acts reported during index admission. Subsequently the group was divided into 2 subgroups consisting of individuals with aggressive behaviours during hospitalization and patients without reported violent acts, both regardless of aggressive behaviours marked or not in the referrals. In each group, The Brief Psychiatric Rating Scale (BPRS) was used. The type, gravity and number of aggressive behaviours were assessed with the "Overt Aggression Scale" (OAS).
  
  
  RESULTS
  During the study, 34% of the participants presented aggressive behaviours. Over 80 % of aggressive acts were observed during the first week of hospitalization. 84% of the patients with aggressive behaviours during index admission presented similar behaviours during previous hospitalizations.
  
  
  CONCLUSIONS
  The study corroborates the hypothesis that aggressive behaviours among patients admitted to the psychiatric hospital due to aggression are very frequent and predominantly observed in the early stages of hospitalizations. Identified important and predictive factors of possible aggressive behaviours are: violent acts marked in the referrals, treatment in the psychiatric hospital without consent and aggressive behaviours during previous hospitalizations conformed in the medical reports.
authors.affiliation: Katedra i Klinika Psychiatrii AM we Wrocławiu.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Adamowski
authors.forename: Patryk
authors.initials: P
authors.lastname: Piotrowski
authors.forename: Mikołaj
authors.initials: M
authors.lastname: Trizna
authors.forename: Andrzej
authors.initials: A
authors.lastname: Kiejna
mesh_terms: D000328:Adult; D000374:Aggression / Q000145:classification* / Q000523:psychology*; D010054:Brief Psychiatric Rating Scale; D016022:Case-Control Studies; D003134:Commitment of Persons with Psychiatric Disorders / Q000706:statistics & numerical data*; D015897:Comorbidity; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology*; D008875:Middle Aged; D010343:Patient Admission / Q000706:statistics & numerical data; D010348:Patient Care Team / Q000458:organization & administration; D011044:Poland / Q000453:epidemiology; D011567:Psychiatric Department, Hospital; D018570:Risk Assessment / Q000379:methods; D014754:Violence / Q000523:psychology / Q000706:statistics & numerical data*; D055815:Young Adult