Adaptation and Validation of Reflux Symptom Index Into Kannada Language

• Published in: Journal of voice 2022-03, Vol.36 (2), p.290.e1-290.e5
• Main Authors: Nayak, Priyanka Suresh, Balasubramanium, Radish Kumar, Gunjawate, Dhanshree R
• Format: Article
• Language: English
• Subjects: Cross-Sectional Studies; Gastroesophageal reflux disorder; Humans; Kannada; Language; Laryngopharyngeal reflux; Laryngopharyngeal Reflux - diagnosis; Reflux symptom index; Reproducibility of Results; Surveys and Questionnaires; Translating
• ISSN: 0892-1997; 1873-4588
• DOI: 10.1016/j.jvoice.2020.05.013

: The present study aimed to translate, validate the Reflux Symptom Index in Kannada language and to compare its outcomes between normal individuals and individuals with laryngopharyngeal reflux. : Cross sectional study design : The English version of Reflux Symptom Index was translated into Kannada language using standard procedures. A total of 162 participants participated in the study, 81 with laryngopharyngeal reflux and 81 controls. Internal consistency, test-retest reliability, and clinical validity were calculated. : Results revealed that the Kannada Reflux Symptom Index exhibited an excellent internal consistency (α = 0.87). The average intra-class correlation coefficient was 0.90 and 0.92, indicating excellent test-retest reliability. Independent sample t test revealed a statistically significant difference between the total scores of both the groups, thereby exhibiting good clinical validity of RSI-K (t = 42.71, df = 158, P < 0.001). The Kannada Reflux Symptom Index is a reliable and valid tool for use in patients with laryngopharyngeal reflux. It can be used as a quick tool to assess laryngopharyngeal reflux.