Table 1

Frequency of mitochondrial mutations in the hearing impaired patients

MutationGroup 1Group 2
SNHL(SNHL+AG)(SNHL+DM)CI(CI+AG)
1555A→G11/319(7/21)14/140(13/22 )
3243A→G1/319(1/21)0/140
7445A→G0/3190/140
  • SNHL: patients who visited outpatient clinics for sensorineural hearing loss.

  • CI: patients who received cochlear implant.

  • +AG: patients with history of aminoglycoside injection.

  • DM: patients with diabetes mellitus.