Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease

© Pothirat et al. Background: The COPD Assessment Test (CAT™) is a new questionnaire that has been developed recently for measuring the COPD patient's health status. It is known to have a good correlation with disease specific health status measured by St. George's Respiratory Questionnair...

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Main Authors: Pothirat,C., Kiatboonsri,S., Chuchottaworn,C.
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Published: BioMed Central 2015
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http://cmuir.cmu.ac.th/handle/6653943832/38408
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spelling th-cmuir.6653943832-384082015-06-16T07:47:10Z Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease Pothirat,C. Kiatboonsri,S. Chuchottaworn,C. Pulmonary and Respiratory Medicine © Pothirat et al. Background: The COPD Assessment Test (CAT™) is a new questionnaire that has been developed recently for measuring the COPD patient's health status. It is known to have a good correlation with disease specific health status measured by St. George's Respiratory Questionnaire (SGRQ). For the wider application in clinical practice, it has been validated in many countries. We evaluated the reliability and validity of the translated CAT questionnaire for Thai COPD patients. Methods: The study was designed as a cross-sectional validation study enrolling stable Thai COPD patients from three academic centers in Thailand at a single visit. The original CAT questionnaire was translated to Thai through linguistic validation process. The official Thai CAT and SGRQ questionnaires were filled by Thai patients after orientation by the out-patient nurse. The reliability of all items was assessed by Cronbach's formula for coefficient using pooled data from all patients. The validity of the questionnaire was tested using Pearson's correlation with SGRQ. Results: A total of 98 Thai COPD patients completed the official Thai CAT questionnaire; 83% were male, mean age 71 years (SD 8.2), and % predicted of FEV1 56.6% (SD 20.9). The official Thai CAT questionnaire was shown to have a high internal consistency (Cronbach's α coefficient = 0.853). The assessment of validity of official Thai CAT questionnaire was moderately correlated with that of SGRQ (r = 0.652). Conclusions: The official Thai CAT questionnaire has an acceptable reliability and validity. It can be expected to serve as a short and simple tool for assessment of the health status of Thai COPD patients. 2015-06-16T07:47:10Z 2015-06-16T07:47:10Z 2014-11-20 Article 14712466 2-s2.0-84924065652 10.1186/1471-2466-14-193 http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84924065652&origin=inward http://cmuir.cmu.ac.th/handle/6653943832/38408 BioMed Central
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Pulmonary and Respiratory Medicine
spellingShingle Pulmonary and Respiratory Medicine
Pothirat,C.
Kiatboonsri,S.
Chuchottaworn,C.
Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease
description © Pothirat et al. Background: The COPD Assessment Test (CAT™) is a new questionnaire that has been developed recently for measuring the COPD patient's health status. It is known to have a good correlation with disease specific health status measured by St. George's Respiratory Questionnaire (SGRQ). For the wider application in clinical practice, it has been validated in many countries. We evaluated the reliability and validity of the translated CAT questionnaire for Thai COPD patients. Methods: The study was designed as a cross-sectional validation study enrolling stable Thai COPD patients from three academic centers in Thailand at a single visit. The original CAT questionnaire was translated to Thai through linguistic validation process. The official Thai CAT and SGRQ questionnaires were filled by Thai patients after orientation by the out-patient nurse. The reliability of all items was assessed by Cronbach's formula for coefficient using pooled data from all patients. The validity of the questionnaire was tested using Pearson's correlation with SGRQ. Results: A total of 98 Thai COPD patients completed the official Thai CAT questionnaire; 83% were male, mean age 71 years (SD 8.2), and % predicted of FEV1 56.6% (SD 20.9). The official Thai CAT questionnaire was shown to have a high internal consistency (Cronbach's α coefficient = 0.853). The assessment of validity of official Thai CAT questionnaire was moderately correlated with that of SGRQ (r = 0.652). Conclusions: The official Thai CAT questionnaire has an acceptable reliability and validity. It can be expected to serve as a short and simple tool for assessment of the health status of Thai COPD patients.
format Article
author Pothirat,C.
Kiatboonsri,S.
Chuchottaworn,C.
author_facet Pothirat,C.
Kiatboonsri,S.
Chuchottaworn,C.
author_sort Pothirat,C.
title Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease
title_short Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease
title_full Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease
title_fullStr Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease
title_full_unstemmed Validation of the new COPD assessment test translated into Thai in patients with chronic obstructive pulmonary disease
title_sort validation of the new copd assessment test translated into thai in patients with chronic obstructive pulmonary disease
publisher BioMed Central
publishDate 2015
url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84924065652&origin=inward
http://cmuir.cmu.ac.th/handle/6653943832/38408
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