To identify whether patients with diabetes
have a higher incidence of sensorineural hearing loss
than the general population and examine whether control of diabetes
is related to severity of hearing loss.
Retrospective database review; complete data mining of electronic medical record from 1989 to present.
Tertiary referral center.
Electronic medical records from 53,461 nondiabetic age-matched patients and 12,575 diabetic patients were reviewed.
Main Outcome Measures
Presence or absence of diabetes
and/or sensorineural hearing loss
, serum creatinine
, pure tone hearing (dB), speech discrimination (%), serum cholesterol, and triglycerides.
Results Sensorineural hearing loss
was more common in the diabetic patients than in age0matched nondiabetic patients from the same institutions. Poor control of diabetes
, as measured by increasing serum creatinine
, but not apparent in hemoglobin A1C laboratory data, correlated with worsening hearing in patients with diabetes
who had sensorineural hearing loss
Conclusions Sensorineural hearing loss
was more common in patients with diabetes
than in the control nondiabetic patients, and severity of hearing loss seemed to correlate with progression of disease as reflected in serum creatinine
. This may have been due to microangiopathic disease in the inner ear.