Key result
Type 2 diabetes mellitus was associated with a higher prevalence of moderate to moderately severe hearing loss compared to healthy controls (38.4% vs 16.7%), although the analysis did not show a statistically significant correlation.
Why the study?
The relationship between diabetes and sensorineural hearing loss has been an area of interest, prompting evaluation of hearing loss among individuals diagnosed with type 2 diabetes.
Does type 2 diabetes mellitus increase the risk of hearing loss in adults?
Cross-Sectional (n=120)
No
Does type 2 diabetes mellitus increase the risk of hearing loss in adults?
Absolute Event Rate: 38.4% vs 16.7%
Type 2 diabetes mellitus is associated with a higher prevalence of objective hearing loss, highlighting the potential need for regular audiometric screening in this population.
Type 2 diabetes was associated with higher hearing loss rates; leaves open whether routine screening improves outcomes in prospective studies.
Aims: Diabetes mellitus affects more than 450 million people around the world. The relationship between diabetes and sensorineural hearing loss has been an area of interest. The aim of this study is to evaluate hearing loss, among type 2 diabetes diagnosed in the endocrinology unit of a private tertiary health facility in South West Nigeria. Methods: This was a hospital-based cross-sectional study carried out among type 2 diabetic patients and normal healthy non-diabetic individuals as control. A total of 120 participants were recruited for the test and control. Otoacoustic emission and auditory steady-state response audiometry were carried out on all the participants. Result: The total number of study participants was 120 (60 for test and control) with an age range of 30–79 years for the test and 20–80 years for the control. Otoacoustic emission showed passes for both ears, 61.7% pass in both ears for the test group and 76.7% pass in both ears for the control group. 21.7% of the test and control were referred for both ears. 16.6% of the test group was referred in one ear compared to 1.7% in the control group. Auditory steady-state response (ASSR) audiometry showed mild to profound hearing loss in all test groups while in the control group 20% had normal hearing. Moderate to moderately severe hearing loss in at least one ear was 38.4% in the test ear compared to 16.7% in the control group. Conclusion: Hearing loss is an established complication of type 2 diabetes. Therefore, it is necessary to incorporate regular hearing screening for patients with diabetes for early detection, counseling, and rehabilitation for those with disabling hearing loss.
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Akinola et al. (2024) conducted a cross-sectional in Type 2 diabetes mellitus (n=120). Type 2 diabetes mellitus vs. Healthy non-diabetic controls was evaluated on Moderate to moderately severe hearing loss in at least one ear (assessed by ASSR). Type 2 diabetes mellitus was associated with a higher prevalence of moderate to moderately severe hearing loss compared to healthy controls (38.4% vs 16.7%), although the analysis did not show a statistically significant correlation.
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