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Irritable bowel syndrome-specific health-related quality of life instrument: Development and psychometric evaluation

Title
Irritable bowel syndrome-specific health-related quality of life instrument: Development and psychometric evaluation
Authors
Lee E.-H.Kwon O.Hahm K.B.Kim W.H.Kim J.I.Cheung D.Y.Kim Y.J.Kim J.H.Park J.-J.Joo M.K.
Ewha Authors
권오란
SCOPUS Author ID
권오란scopus
Issue Date
2016
Journal Title
Health and Quality of Life Outcomes
ISSN
1477-7525JCR Link
Citation
vol. 14, no. 1, pp. 11
Keywords
Health-related quality of lifeIrritable bowel syndromeReliabilityValidity
Publisher
BioMed Central Ltd.
Indexed
SCI; SCIE; SSCI; SCOPUS WOS scopus
Abstract
Background: Health-related quality of life (HRQOL) is an important outcome indicator for chronic disease, and particularly in the absence of biological markers for illness, such as with irritable bowel syndrome (IBS). The aims of this study were to develop and evaluate a new IBS-specific HRQOL instrument (IBS-HR-QOL). Methods: This methodological study comprised three steps: conceptualization of the IBS-HR-QOL, item extraction and establishment of content validity, and psychometric evaluation of the instrument with 267 IBS patients recruited from four university hospitals. Results: The content validity of the developed IBS-HR-QOL was assessed by 11 experts. Exploratory and confirmatory factor analyses yielded four factors. The criterion and convergent validities of the IBS-HR-QOL were demonstrated using the Short Form-36 and the Hospital Anxiety and Depression Scale, respectively. Known-groups validity was demonstrated using a symptom-severity scale. The internal consistency reliability and test-retest reliability were satisfactory, with a Cronbach's alpha and intraclass correlation coefficient of 0.93 and 0.88, respectively. Conclusions: The IBS-HR-QOL comprises a total of 16 items. The IBS-HR-QOL demonstrated good psychometric properties. This instrument is easily comprehensible and short, rendering it feasible for use in clinical practice and research. © 2016 Lee et al.
DOI
10.1186/s12955-016-0423-9
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신산업융합대학 > 식품영양학과 > Journal papers
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