title: The prevalence of posttraumatic stress disorder in an adolescent inpatient unit.
abstract: OBJECTIVE
  To examine the prevalence and comorbidity of posttraumatic stress disorder (PTSD) in an adolescent inpatient population. A 2-year retrospective chart study was conducted.
  
  
  METHODS
  Computer-registered data of discharge records from 1993 and 1994 were recovered. Patients were grouped by diagnosis; frequency and chi-square statistical analyses were performed to ascertain the prevalence and the comorbidity of various diagnoses with PTSD.
  
  
  RESULTS
  A total of 187 patients, 114 females and 73 males, with a mean age of 15 years were reviewed, and 42% (79) of all patients had a diagnosis of PTSD using DSM-III-R criteria. There were 54 females and 25 males with PTSD; however, gender effect was not clinically significant. Associated comorbidity reaching clinical significance included other anxiety disorders (P = 0.008) and depressive disorders (P = 0.003). Asthma was diagnosed as a significant clinical disorder (P = 0.05) comorbid with PTSD. PTSD diagnoses correlated strongly with a history of abuse (P = 0.0001).
  
  
  CONCLUSIONS
  PTSD occurs frequently in adolescent inpatients and is commonly comorbid with other diagnostic presentations. These findings may affect the management of PTSD and prognosis for this population.
authors.affiliation: Foothills Hospital, University of Calgary, Alberta.
authors.forename: M
authors.initials: M
authors.lastname: Koltek
authors.forename: T C
authors.initials: TC
authors.lastname: Wilkes
authors.forename: M
authors.initials: M
authors.lastname: Atkinson
mesh_terms: D000293:Adolescent; D000416:Alberta / Q000453:epidemiology; D001008:Anxiety Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D002649:Child Abuse / Q000175:diagnosis / Q000523:psychology / Q000706:statistics & numerical data; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D010343:Patient Admission / Q000706:statistics & numerical data*; D011567:Psychiatric Department, Hospital / Q000706:statistics & numerical data; D011569:Psychiatric Status Rating Scales; D012189:Retrospective Studies; D012307:Risk Factors; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology