French adaptation and validation of the Panic Disorder Severity Scale—self-report

Abstract Background The aims of this study were to conduct a cross-cultural validation of the Panic Disorder Severity Scale – Self-Report (PDSS-SR) and to examine psychometric properties of the French-Canadian version. Methods A sample of 256 adults were included in the validation study based on dat...

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Main Authors: Pasquale Roberge, Patricia Marx, Jonathan Couture, Nathalie Carrier, Annie Benoît, Martin D. Provencher, Martin M. Antony, Peter J. Norton
Format: Article
Language:English
Published: BMC 2022-06-01
Series:BMC Psychiatry
Subjects:
Online Access:https://doi.org/10.1186/s12888-022-03989-x
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author Pasquale Roberge
Patricia Marx
Jonathan Couture
Nathalie Carrier
Annie Benoît
Martin D. Provencher
Martin M. Antony
Peter J. Norton
author_facet Pasquale Roberge
Patricia Marx
Jonathan Couture
Nathalie Carrier
Annie Benoît
Martin D. Provencher
Martin M. Antony
Peter J. Norton
author_sort Pasquale Roberge
collection DOAJ
description Abstract Background The aims of this study were to conduct a cross-cultural validation of the Panic Disorder Severity Scale – Self-Report (PDSS-SR) and to examine psychometric properties of the French-Canadian version. Methods A sample of 256 adults were included in the validation study based on data from the baseline interview of a clinical trial on transdiagnostic cognitive-behavioral therapy for mixed anxiety disorders. Participants completed the Anxiety and Related Disorders Interview Schedule (ADIS-5), and self-report instruments including the PDSS-SR, Beck Anxiety Inventory (BAI), Mobility Inventory for Agoraphobia (MIA), Sheehan Disability Scale (SDS), Patient Health Questionnaire (PHQ-9), Social Phobia Inventory (SPIN), Insomnia Severity Index (ISI) and Penn State Worry Questionnaire (PSWQ). The cross-cultural adaptation in French of the PDSS-SR included a rigorous back-translation process, with an expert committee review. Sensitivity to change was also examined with a subgroup of patients (n = 72) enrolled in the trial. Results The French version of the PDSS-SR demonstrated good psychometric properties. The exploratory factor analysis supported a one factor structure with an eigenvalue > 1 that explained 64.9% of the total variability. The confirmatory factor analysis (CFA) corroborated a one-factor model with a good model fit. Internal consistency analysis showed a .91 Cronbach’s alpha. The convergent validity was adequate with the ADIS-5 clinical severity ratings for panic disorder (r = .56) and agoraphobia (r = .39), as well as for self-report instruments [BAI (r = .63), MIA (accompanied: r = .50; alone: r = .47) and SDS (r = .37)]. With respect to discriminant validity, lower correlations were found with the SPIN (r = .17), PSWQ (r = .11), ISI (r = .19) and PHQ-9 (r = .28). The optimal threshold for probable diagnosis was 9 for the PDSS-SR and 4 for the very brief 2-item version. The French version showed good sensitivity to change. Conclusions The French version of the PDSS-SR has psychometric properties consistent with the original version and constitutes a valid brief scale to assess the severity of panic disorder and change in severity over time, both in research and clinical practice.
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spelling doaj.art-8b3ca12553204ad6a06c2e411d726e532022-12-22T02:41:33ZengBMCBMC Psychiatry1471-244X2022-06-0122111210.1186/s12888-022-03989-xFrench adaptation and validation of the Panic Disorder Severity Scale—self-reportPasquale Roberge0Patricia Marx1Jonathan Couture2Nathalie Carrier3Annie Benoît4Martin D. Provencher5Martin M. Antony6Peter J. Norton7Department of Family Medicine and Emergency Medicine, Université de SherbrookeDepartment of Family Medicine and Emergency Medicine, Université de SherbrookeDepartment of Family Medicine and Emergency Medicine, Université de SherbrookeDepartment of Family Medicine and Emergency Medicine, Université de SherbrookeDepartment of Family Medicine and Emergency Medicine, Université de SherbrookeÉcole de Psychologie, Pavillon Félix-Antoine-Savard, Université LavalDepartment of Psychology, Toronto Metropolitan UniversityThe Cairnmillar InstituteAbstract Background The aims of this study were to conduct a cross-cultural validation of the Panic Disorder Severity Scale – Self-Report (PDSS-SR) and to examine psychometric properties of the French-Canadian version. Methods A sample of 256 adults were included in the validation study based on data from the baseline interview of a clinical trial on transdiagnostic cognitive-behavioral therapy for mixed anxiety disorders. Participants completed the Anxiety and Related Disorders Interview Schedule (ADIS-5), and self-report instruments including the PDSS-SR, Beck Anxiety Inventory (BAI), Mobility Inventory for Agoraphobia (MIA), Sheehan Disability Scale (SDS), Patient Health Questionnaire (PHQ-9), Social Phobia Inventory (SPIN), Insomnia Severity Index (ISI) and Penn State Worry Questionnaire (PSWQ). The cross-cultural adaptation in French of the PDSS-SR included a rigorous back-translation process, with an expert committee review. Sensitivity to change was also examined with a subgroup of patients (n = 72) enrolled in the trial. Results The French version of the PDSS-SR demonstrated good psychometric properties. The exploratory factor analysis supported a one factor structure with an eigenvalue > 1 that explained 64.9% of the total variability. The confirmatory factor analysis (CFA) corroborated a one-factor model with a good model fit. Internal consistency analysis showed a .91 Cronbach’s alpha. The convergent validity was adequate with the ADIS-5 clinical severity ratings for panic disorder (r = .56) and agoraphobia (r = .39), as well as for self-report instruments [BAI (r = .63), MIA (accompanied: r = .50; alone: r = .47) and SDS (r = .37)]. With respect to discriminant validity, lower correlations were found with the SPIN (r = .17), PSWQ (r = .11), ISI (r = .19) and PHQ-9 (r = .28). The optimal threshold for probable diagnosis was 9 for the PDSS-SR and 4 for the very brief 2-item version. The French version showed good sensitivity to change. Conclusions The French version of the PDSS-SR has psychometric properties consistent with the original version and constitutes a valid brief scale to assess the severity of panic disorder and change in severity over time, both in research and clinical practice.https://doi.org/10.1186/s12888-022-03989-xAssessment scalePanic disorderAgoraphobiaPsychometric propertiesCross-cultural validationAnxiety disorders
spellingShingle Pasquale Roberge
Patricia Marx
Jonathan Couture
Nathalie Carrier
Annie Benoît
Martin D. Provencher
Martin M. Antony
Peter J. Norton
French adaptation and validation of the Panic Disorder Severity Scale—self-report
BMC Psychiatry
Assessment scale
Panic disorder
Agoraphobia
Psychometric properties
Cross-cultural validation
Anxiety disorders
title French adaptation and validation of the Panic Disorder Severity Scale—self-report
title_full French adaptation and validation of the Panic Disorder Severity Scale—self-report
title_fullStr French adaptation and validation of the Panic Disorder Severity Scale—self-report
title_full_unstemmed French adaptation and validation of the Panic Disorder Severity Scale—self-report
title_short French adaptation and validation of the Panic Disorder Severity Scale—self-report
title_sort french adaptation and validation of the panic disorder severity scale self report
topic Assessment scale
Panic disorder
Agoraphobia
Psychometric properties
Cross-cultural validation
Anxiety disorders
url https://doi.org/10.1186/s12888-022-03989-x
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