RT Journal Article T1 Validation of a Spanish version of the Leicester Cough Questionnaire in cystic fibrosis. A1 Muñoz, Gerard A1 de Gracia, Javier A1 Giron, Rosa A1 Olveira, Casilda A1 Alvarez, Antonio A1 Buxó, Maria A1 Birring, Surinder S A1 Vendrell, Montserrat K1 bronchiectasis K1 cough K1 cystic fibrosis K1 quality of life K1 respiratory disease K1 symptoms AB Cough is a main symptom in cystic fibrosis (CF). We aim to validate a Spanish version of the Leicester Cough Questionnaire (LCQ-Sp) to measure the impact of cough in CF bronchiectasis. A prospective longitudinal multicentre study was performed. Internal consistency and score changes over a 15-day period in stable state were assessed to analyse reliability. Concurrent validity was analysed by correlation with Saint George's Respiratory Questionnaire (SGRQ) and convergent validity by assessing the association with clinical variables. Changes in scores between stable state and the first exacerbation were assessed to analyse responsiveness. 132 patients (29.73 ± 10.52 years) were enrolled in four hospitals. Internal consistency was high for the total score and good for the three domains (Cronbach's α 0.81-0.93). The test-retest reliability showed an intraclass correlation coefficient of 0.86 for the total score. The correlation between LCQ-Sp and SGRQ scores was -0.74. The LCQ-Sp score negatively correlated with sputum volume, and the mean score decreased at the beginning of exacerbations (16.04±3.81 vs 13.91±4.29) with a large effect size. The LCQ-Sp is a reliable, repeatable and responsive instrument to assess the impact of cough in CF bronchiectasis and is responsive to change in the event of exacerbations. YR 2021 FD 2021 LK https://hdl.handle.net/10668/24468 UL https://hdl.handle.net/10668/24468 LA en DS RISalud RD Apr 6, 2025