OBJECTIVEChronic otitis media (COM) is characterized by chronic, intermittent, or persistent discharge through a perforated tympanic membrane. In this study, we aimed to evaluate the postoperative audiological outcomes in middle-aged patients compared to younger patients who underwent tympanoplasty with mastoidectomy via post-auricular approach for the treatment of COM.METHODSThis prospective interventional study included patients admitted in wards from August 2017 to January 2019 at the Department of Otorhinolaryngology, Jawaharlal Nehru Medical College and Hospital, Aligarh, India. A total of 70 patients diagnosed with COM were enrolled and divided into two groups. Group A (middle-aged COM group) included patients 41 to 60 years of age and Group B (younger COM group) consisted of patients 21 to 40 years of age. Patients were followed up for a period of approximately six to nine months to assess the audiological status evaluated at three, six, and nine months after surgery.RESULTSIt was found that after three, six, and nine months post-surgery, the difference in the mean audiological gain was not statistically significant, with p-values at 0.3034, 0.3271, and 0.2923, respectively. The audiological gain demonstrated a slight decrease over time in both groups.CONCLUSIONAudiological improvement, measured as the mean audiological gain, demonstrated a slight decrease over time in both groups. However, there was no significant difference in the improvement of the air-bone gap between middle-aged and younger patients.