Retrospective Health Care Utilisation and Current Quality of Life in Adults With Chronic Otitis Media Who Had a Middle Ear Surgery

Inclusion Criteria: * Adult subjects, 18 years or older. * Subjects with conductive or mixed hearing loss. * Subjects with historically documented diagnosis of Chronic Otitis Media (COM) with or without cholesteatoma in the operated ear. * Subjects who have undergone primary tympanoplasty type I-V to improve hearing between 2010-2016. * Subjects with a Pure Tone Average (PTA)4 air-bone gap ≥30 decibels (dB) OR PTA4 air-bone gap between 25-30 dB with an air conduction threshold PTA4 ≥40 dB HL within 12 months after primary tympanoplasty in the operated ear. * Subjects who have been recommended by their health care professional to try a hearing aid to improve hearing in the operated ear. * Pre-op audiogram, maximum 1 year prior to the primary tympanoplasty, and post-op audiogram for the primary tympanoplasty are available. * Aided audiogram, unaided if no hearing device is used, available between 2018 and the point of enrolment. * Subjects are fluent in the language used for study questionnaires: German, French, Spanish. * Subjects are willing and able to provide written informed consent. For France: subjects do not oppose to participate in the study. * Medical Record data is available throughout the defined data search period, from primary tympanoplasty to point of enrolment. Exclusion Criteria: * Subjects are unable or unwilling to comply with the requirements of the study as determined by the investigator. * Investigator site personnel directly affiliated with this study …