title: Panic Disorder Severity Scale: reliability and validity of the Turkish version.
abstract: We assessed the reliability and validity of the Turkish version of the seven-item Panic Disorder Severity Scale (PDSS). We recruited 174 subjects, including 104 with current DSM-IV panic disorder with (n=76) or without(n=28)agoraphobia, 14 with a major depressive episode, 24 with a non-panic anxiety disorder, and 32 healthy controls. Assessment instruments were Panic Disorder Severity Scale, Panic and Agoraphobia Scale, both the observer-rated (P&Ao) and self-rating (P& Asr); Clinical Global Impression Scale (CGI); Hamilton Anxiety Scale, and Beck Depression Inventory. We repeated the measures for a group of panic disorder patients (n = 51) after 4 weeks to assess test-retest reliability. The internal consistency (Cronbach's alpha) of the PDSS was .92-94. The inter-rater correlation coefficient was .79. The test-retest correlation coefficient after 4 weeks was .63. In discriminant validity analyses, the highest correlation for PDSS was with P&Ao, P&Asr (r=.87 and.87, respectively) and CGI (r=.76) and the lowest with Beck Depression Inventory (r=.29). The cut-off point was six/seven, associated with high sensitivity (99%) and specificity (98%). This study confirmed the objectivity, reliability and validity of the Turkish version of the PDSS.
authors.affiliation: Department of Psychiatry, Dokuz Eylül University, Izmir, Turkey. monkul@uthscsa.edu
authors.forename: E Serap
authors.initials: ES
authors.lastname: Monkul
authors.forename: Umit
authors.initials: U
authors.lastname: Tural
authors.forename: Elif
authors.initials: E
authors.lastname: Onur
authors.forename: Hüray
authors.initials: H
authors.lastname: Fidaner
authors.forename: Tunç
authors.initials: T
authors.lastname: Alkin
authors.forename: M Katherine
authors.initials: MK
authors.lastname: Shear
mesh_terms: D000328:Adult; D000379:Agoraphobia / Q000175:diagnosis / Q000523:psychology; D001008:Anxiety Disorders / Q000175:diagnosis / Q000523:psychology; D015897:Comorbidity; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016584:Panic Disorder / Q000175:diagnosis* / Q000523:psychology; D010555:Personality Inventory / Q000706:statistics & numerical data; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D014177:Translations; D014421:Turkey