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Validation of the Self-Assessment of Treatment Questionnaire among Patients with Postherpetic Neuralgia
Joint Authors
Kawata, Ariane K.
Wiklund, Ingela
Holmstrom, Stefan
Thompson, Christine
Wyrwich, Kathleen W.
Stoker, Malcolm
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-13
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Introduction.
A five-item Self-Assessment of Treatment (SAT) was developed to assess improvement and satisfaction with treatment associated with the application of a novel high concentration 8% capsaicin topical patch in clinical trials in patients with postherpetic neuralgia (PHN).
This study evaluated the item performance and psychometric properties of the SAT.
Methods.
The SAT, Brief Pain Inventory, SF-36v2, Short-Form McGill Pain Questionnaire, and Patient and Clinician Global Impression of Change (PGIC; CGIC) scores were measured in two 12-week Phase 3 clinical trials.
Factor analysis assessed the underlying factor structure, followed by examination of the reliability and validity of the multi-item domain.
Results.
Pooled data from 698 patients completing SAT after 12 weeks of treatment were analyzed.
A one-factor model combining three of the five items emerged as the optimal solution.
Internal consistency reliability of this treatment efficacy factor was high (Cronbach's alpha = 0.89).
Construct validity was demonstrated by moderate to high correlations with change in other study endpoints.
SAT mean scores consistently discriminated between patient change groups defined by PGIC and CGIC.
Conclusions.
The measurement properties of the three-item version of SAT are valid and reliable for assessment of treatment with a high concentration capsaicin patch among patients with PHN.
American Psychological Association (APA)
Wyrwich, Kathleen W.& Kawata, Ariane K.& Thompson, Christine& Holmstrom, Stefan& Stoker, Malcolm& Wiklund, Ingela. 2012. Validation of the Self-Assessment of Treatment Questionnaire among Patients with Postherpetic Neuralgia. Pain Research and Treatment،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-485873
Modern Language Association (MLA)
Wyrwich, Kathleen W.…[et al.]. Validation of the Self-Assessment of Treatment Questionnaire among Patients with Postherpetic Neuralgia. Pain Research and Treatment No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-485873
American Medical Association (AMA)
Wyrwich, Kathleen W.& Kawata, Ariane K.& Thompson, Christine& Holmstrom, Stefan& Stoker, Malcolm& Wiklund, Ingela. Validation of the Self-Assessment of Treatment Questionnaire among Patients with Postherpetic Neuralgia. Pain Research and Treatment. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-485873
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-485873