Background: The aim of this study was to find out how candidacy criteria have evolved differently across the globe.
Methods: Candidacy criteria and outcome measurements applied in 19 HEARRING clinics were analyzed.
Results: Candidacy criteria vary between clinics. Overall, both bilateral implantation and cochlear implantation in patients with single-sided deafness are becoming more frequent.
Conclusion: Standardized outcome measurement instruments need to be applied to provide access to the hearing world to all patients with hearing loss who would benefit from cochlear implantation.