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Validity and reliability of the thai version of the leicester cough questionnaire in chronic cough

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Prapaporn Pornsuriyasak, Theerasuk Kawamatawong, Sasivimol Rattanasiri, Visasiri Tantrakul, Tipaporn Pongmesa, Surinder S Birring, Ammarin Thakkinstian

Original languageEnglish
Pages (from-to)212-216
Number of pages5
JournalAsian Pacific Journal of Allergy and Immunology
Volume34
Issue number3
DOIs
E-pub ahead of print1 Sep 2016

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Abstract

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

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