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- Title
Irritable bowel syndrome-specific health-related quality of life instrument: development and psychometric evaluation.
- Authors
Eun-Hyun Lee; Oran Kwon; Ki Baik Hahm; WonHee Kim; Jin Il Kim; Dae Young Cheung; Yoon Jae Kim; Jung Ho Kim; Jong-Jae Park; Moon Kyung Joo; Lee, Eun-Hyun; Kwon, Oran; Hahm, Ki Baik; Kim, WonHee; Kim, Jin Il; Cheung, Dae Young; Kim, Yoon Jae; Kim, Jung Ho; Park, Jong-Jae; Joo, Moon Kyung
- Abstract
<bold>Background: </bold>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).<bold>Methods: </bold>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.<bold>Results: </bold>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.<bold>Conclusions: </bold>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.
- Subjects
HEALTH status indicators; QUALITY of life; WELL-being; CHRONIC diseases; BIOMARKERS; IRRITABLE colon; MENTAL health; PSYCHOMETRICS; COMPARATIVE studies; FACTOR analysis; HEALTH surveys; RESEARCH methodology; MEDICAL cooperation; PSYCHOLOGICAL tests; QUESTIONNAIRES; READABILITY (Literary style); RESEARCH; RESEARCH evaluation; EVALUATION research; PSYCHOLOGY; EQUIPMENT &; supplies
- Publication
Health & Quality of Life Outcomes, 2016, Vol 14, p1
- ISSN
1477-7525
- Publication type
journal article
- DOI
10.1186/s12955-016-0423-9