Publication: Validity and reliability of the thai version of the leicester cough questionnaire in chronic cough
Issued Date
2016-09-01
Resource Type
ISSN
22288694
0125877X
0125877X
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2-s2.0-84992020746
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Pacific Journal of Allergy and Immunology. Vol.34, No.3 (2016), 212-216
Suggested Citation
Prapaporn Pornsuriyasak, Theerasuk Kawamatawong, Sasivimol Rattanasiri, Visasiri Tantrakul, Tipaporn Pongmesa, Surinder S. Birring, Ammarin Thakkinstian Validity and reliability of the thai version of the leicester cough questionnaire in chronic cough. Asian Pacific Journal of Allergy and Immunology. Vol.34, No.3 (2016), 212-216. doi:10.12932/AP0685.34.3.2016 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/40727
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Title
Validity and reliability of the thai version of the leicester cough questionnaire in chronic cough
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Abstract
© 2016, Allergy and Immunology Society of Thailand. All rights reserved. Background: Chronic cough is a common problem potentially disturbing the quality of life (QoL) of coughers. The Leicester Cough Questionnaire (LCQ), previously developed in England, is a validated, self-completed QoL instrument for assessment of chronic cough. This study aimed to develop a Thai version of the LCQ (LCQ-T) and assess its validity and reliability among adult Thai patients with subacute to chronic cough. Methods: A total of 146 patients with a cough lasting for more than 3 weeks consented to participate in this study and self-administered the LCQ-T, together with the following 3 instruments: Borg Cough Scale (BCS), Short Form-36 (SF-36), and Hospital Anxiety Depression Scale (Thai-HADS). The LCQ-T was developed by applying a forward-backward translation approach. The LCQ-T comprises 19 items divided into 3 domains: physical (8 items), psychological (7 items), and social (4 items). To validate the LCQ-T, concurrent validity, internal consistency reliability, and test-retest reliability were assessed. Results: Participants included 96 women and 50 men with a mean (SD) age of 59.6 (14.4) years. The concurrent validity comparing LCQ-T to BCS yielded statistically significant Pearson correlation coefficients (r= -0.74, P<0.05). The correlation coefficients for SF-36 and Thai-HADS were also significant. The LCQ-T demonstrated very good internal consistency in all domains and the overall scale, with the Cronbach’s alpha coefficients ranging from 0.89 to 0.94. The 3-day repeatability of the LCQ-T in 25 clinically stable patients was high with the intra-class correlation coefficients ranging between 0.81 and 0.90. Conclusion: LCQ-T is a valid and reliable cough-specific instrument for assessing symptoms and QoL of adult Thai patients with subacute to chronic cough.