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Validity and Reliability of the Mandarin Chinese Version of the Reflux Sign Assessment
Lingyu Yu1, Jia Ren1, Manlin Chen1
1Department of Otorhinolaryngology, Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041 Sichuan, China.
Objective:
The aim of this study was to validate and assess the reliability and validity of the Mandarin Chinese version of the Reflux Sign Assessment (RSA) among individuals with and without laryngopharyngeal reflux disease (LPRD).
Methods:
This study was carried out from May 2023 to August 2024. A total of 202 individuals were enrolled in this study, including 106 with LPRD and 96 without. Multichannel intraluminal impedance-pH was performed to diagnose LPRD. The internal consistency, test-retest reliability, content validity, clinical, sensitivity, and specificity were analyzed, and the cutoff point was determined.
Results:
The internal consistency of the Chinese RSA was high, with Cronbach α coefficients for the subscale scores ranged from 0.707 to 0.822; the values for the total score were 0.812. Test-retest reliability was high for the total score (intraclass correlation coefficient (ICC) = 0.953) and the subscales (ICCs = 0.936, 0.895, 0.923). The patient group had significantly higher total scores, subscale scores, and majority item scores than the control group (P < 0.001). The cutoff point for screening between the two groups was 17.5, with a sensitivity of 94.7% and a specificity of 66.7%.
Conclusions:
The Chinese RSA is a valid and reliable tool for identifying individuals with probable LPRD. It has good reliability, validity, and sensitivity in the Mandarin Chinese-speaking population.
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