Psychometric Validation of the Cancer Therapy Satisfaction Questionnaire

Abstract Purpose To assess the domain structure and to evaluate the psychometric properties of the Cancer Therapy Satisfaction Questionnaire (CTSQ) and the relation between the CTSQ and health-related quality of life (HRQOL). Methods Three hundred sixty-one individuals with breast, colorectal, lung...

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Bibliographic Details
Published in:Value in health 2008-07, Vol.11 (4), p.669-679
Main Authors: Trask, Peter C., PhD, MPH, Tellefsen, Crystal, BA, Espindle, Derek, MA, Getter, Christine, Hsu, Ming-Ann, MPH
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Cancer
Data Interpretation, Statistical
Female
Health status
Hormone replacement therapy
Humans
Internal Medicine
Male
Middle Aged
Neoplasms - psychology
Neoplasms - therapy
Outcome Assessment (Health Care)
Patient Satisfaction
Psychometric properties
psychometric validation
Psychometrics
Quality of Life
Skin melanoma
Surveys and Questionnaires
treatment satisfaction
United States
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Summary:Abstract Purpose To assess the domain structure and to evaluate the psychometric properties of the Cancer Therapy Satisfaction Questionnaire (CTSQ) and the relation between the CTSQ and health-related quality of life (HRQOL). Methods Three hundred sixty-one individuals with breast, colorectal, lung cancer, or melanoma who had received in the last 6 months or were currently receiving more than one cycle of chemo, biological, or hormonal therapy completed the 21-item CTSQ, with a random subsample of 88 patients completing it again 1 week later. Participants also completed quality of life, treatment satisfaction, and other self-reported questions on each occasion. Demographics, ECOG performance status, and clinical information were collected. CTSQ responses were submitted to multitrait analyses and exploratory factor analysis. Psychometric properties and the correlations between the CTSQ and the Quality of Life Questionnaire—Core 30 (QLQ-C30) were evaluated. Results Analyses revealed three domains with good psychometric properties: Feelings about Side Effects, Satisfaction with Therapy, and Expectations of Therapy. Correlations with the QLQ-C30 domains were low to moderate. Conclusion The CTSQ is a newly developed 16-item patient-reported measure with strong psychometric properties and constructs not captured by the QLQ-C30. It can be used to evaluate cancer patients' experiences with intravenous and/or oral chemo, biological, and hormonal therapies.
ISSN:1098-3015
1524-4733
DOI:10.1111/j.1524-4733.2007.00310.x