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Validity and Reliability of the Arabic Cough Severity Index
Hamad F Alrabiah1, Nawaf Alqarni1, Nuha Alrajhi2
1College of Medicine King Saud University Riyadh Saudi Arabia.
Objectives:
This study aimed to translate and validate the Cough Severity Index (CSI) into Arabic (A-CSI) and to evaluate its validity and reliability among patients with chronic cough.
Methods:
This cross-sectional descriptive questionnaire-based validation study was conducted at two tertiary hospitals in Riyadh, Saudi Arabia, between December 2023 and August 2024. The CSI was translated from English into Arabic using the forward-backward method. Its reliability was assessed using Cronbach's alpha and test-retest reliability. Its construct validity was assessed using exploratory factor analysis (EFA), and its internal consistency was assessed using Cronbach's alpha. Its discriminant validity was determined using the Mann-Whitney U test, and its reproducibility was evaluated using the intraclass correlation coefficient (ICC).
Results:
Data were collected from 100 participants, 50 with chronic cough and 50 healthy controls. The mean age was 41.56 ± 14.28 years in the chronic cough group and 35.48 ± 10.02 years in the healthy control group. The A-CSI exhibited high reproducibility (ICC = 0.896) and excellent internal consistency (Cronbach's alpha = 0.966). EFA identified three factors explaining 66.41% of the variance, with all items having communalities > 0.3. The A-CSI exhibited significant discriminant validity between the chronic cough and healthy control groups (p < 0.001).
Conclusion:
The A-CSI is a reliable and valid tool for assessing chronic cough in Arabic-speaking patients, making it suitable for both clinical practice and research.
Level Of Evidence:
Level 3.
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