• John S Phillips, Matthew W Yung, Ian Nunney, Can Doruk, Hakan Kara, Taehoon Kong, Nicola Quaranta, Augusto Peñaranda, Danièle Bernardeschi, Chunfu Dai, Romain Kania, Françoise Denoyelle, and Tetsuya Tono.
• Norfolk & Norwich University Hospitals NHS Foundation Trust, Norwich.
• Otol. Neurotol. 2021 Jan 1; 42 (1): e45-e49.

ObjectivesThe Chronic Otitis Media Questionnaire-12 (COMQ-12) assesses patient-reported health-related quality of life. A multinational collaborative project was performed to translate and appraise the psychometric properties of the COMQ-12 across Europe, Asia, and South America.MethodsEight otology units from seven countries (China, Colombia, France, Italy, Japan, Korea, Turkey) created native versions of the COMQ-12 by the process of translation and back-translation. Questionnaire reliability was assessed on the basis of internal consistency by calculating Cronbach's coefficient alpha. Exploratory factor analysis was performed to identify underlying correlations between individual questionnaire items.ResultsThis study included 478 participants from 8 countries. Calculated values for Cronbach's coefficient alpha were between 0.71 and 0.90. Exploratory factor analysis allowed the identification of three dominant factors, the primary factor (related to hearing problems) explaining 42% of the total variance, the secondary factor (related to daily activities) explaining 30% of the variance, and the third factor (related to acute disease activity) explaining 28% of the variance.ConclusionsThis is a large study of patients with chronic otitis media, from centers from within many different countries spanning Europe, Asia, and South America. This study supports the use of the COMQ-12 within the individual countries where it was tested.

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