Psychometric Analysis of the Bengali Clinical Chronic Obstructive Pulmonary Disease Questionnaire

Background: The Clinical Chronic Obstructive Pulmonary Disease Questionnaire Bengali version (CCQ-B) is a prevalidated, patient-administered, 10-item questionnaire assessing symptom severity (SS) and quality of life in adults suffering from chronic obstructive pulmonary diseases (COPDs). To date, no...

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Bibliographic Details
Published in:	Indian journal of respiratory care Vol. 9; no. 1; pp. 40 - 46
Main Authors:	Banerjee, Aniruddha, Nahar, Laijun, Bhat, Showket, Kumar, Ashutosha, Goenka, Rachna, Sharma, Pralay, Paul, Swapan, Chattopadhyay, Abhijit, Ali, Sk, Michael, James, Koley, Munmun, Saha, Subhranil
Format:	Journal Article
Language:	English
Published:	Medknow Publications and Media Pvt. Ltd 01-01-2020 Jaypee Brothers Medical Publisher
Subjects:	Chronic obstructive lung disease clinical chronic obstructive pulmonary diseases questionnaire confirmatory factor analysis Lung diseases principal component analysis reliability Respiratory tract diseases Surveys validity United Kingdom
Online Access:	Get full text
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Summary:	Background: The Clinical Chronic Obstructive Pulmonary Disease Questionnaire Bengali version (CCQ-B) is a prevalidated, patient-administered, 10-item questionnaire assessing symptom severity (SS) and quality of life in adults suffering from chronic obstructive pulmonary diseases (COPDs). To date, no validated Bengali version of the questionnaire is available. We aimed to translate it into Bengali and examine its psychometric properties. Methods: The CCQ-B was produced by standardized forward–backward translations. A cross-sectional study was conducted to gather responses by consecutive sampling. Reliability was examined using internal consistency (n = 110) and test–retest reliability (n = 30) analyses, concurrent validity by comparing with COPD Assessment Test questionnaire scores, while construct validity by exploratory principal component analysis (varimax rotation; n = 110). Subsequently, confirmatory factor analysis (CFA; n = 110) was performed to verify the model fit of the a priori identified scales. Results: The internal consistency (Cronbach's α) for overall CCQ-B was 0.746, indicating acceptable reliability. Satisfactory values of test–retest reliability and concurrent validity were found. On factor analyses, all the items loaded above the prespecified value of 0.3. Varimax rotation identified three components (SS, health and social life, and depression and limitation of activities), explaining 58.2% of variation. The Kaiser–Meyer–Olkin was 0.734 and Bartlett's test of sphericity was also significant. Goodness-of-fit of the three-component model in CFA was mediocre, but acceptable. Conclusion: The CCQ-B, consisting of 10 items and framed within three components, is a valid and reliable questionnaire but measured different dimensions from the English version.
ISSN:	2277-9019 2321-4899
DOI:	10.4103/ijrc.ijrc_19_19