Validation of a Spanish version of the health-related quality of life (HRQoL) measure for Chronic Otitis Media (COMQ-12)
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RESEARCH
Validation of a Spanish version of the health‑related quality of life (HRQoL) measure for Chronic Otitis Media (COMQ‑12) Ana M. Otoya‑Tono1, Lucía C. Pérez‑Herrera2,3, Daniel Peñaranda1, Sergio Moreno‑López2,3, Ricardo Sánchez‑Pedraza4, Juan Manuel García1,2,5, John S. Phillips6 and Augusto Peñaranda2,5*
Abstract Background: Evaluation of health-related quality of life (HRQoL) is considered an important aspect of clinical assess‑ ment and health research. Chronic Otitis Media (COM) is related to the quality of life deterioration subsequent to COM symptoms, social communication impairments, and lower work performance. However, there is no reliable informa‑ tion regarding the impact of this disease on health and quality of life in many resource-poor countries. Therefore, we translated into Spanish the Chronic Otitis Media Questionnaire-12 (COMQ-12) for the evaluation of HRQoL of Chronic Otitis Media (COM) in adult patients. Also, we assessed the psychometric properties of the Spanish version of the questionnaire. Methods: Two otology referral centers in Bogotá, Colombia were included. The Spanish version of COMQ-12 was applied twice to 200 adult patients with confirmed COM diagnosis and 31 healthy controls to perform the validation process and assess the internal consistency of this questionnaire. Psychometric characteristics (internal consistency, test–retest reliability, and construct validity) of the COMQ-12 were assessed. Exploratory Factor Analysis and Confirma‑ tory Factor Analysis were conducted via structural equation modeling to test the questionnaire’s structure. Results: The Spanish version of the COMQ-12 showed good internal consistency (Cronbach’s Alpha: 0.86, McDon‑ ald’s Omega: 0.89). Coefficients corresponding to Lin’s Concordance test and test–retest reliability were 0.95 and 0.83 respectively. Correlation between the Visual Analogue Scale (VAS) and the COMQ-12 was 0.68 (95% CI 0.59–0.75, p value
